Welcome to a healthy and happy 2018 human-humane architecture with your every other week's edition with your host, DeSoto Brown and Martin deSpanck. So I just got back from Germany, so picture one is me back with my loved ones, personally and professionally thinking about the evolution of tradition. And while I was there, the first show in this year was done by, let's picture number two by J. Feidel and by Tonya Moe. And it made me sentimental about the magnificence of the magnificent mile here in Honolulu that is about to go. And as modest and moderate Tonya always is, next picture J was a little bit more specific and talked about all the new stuff that's replacing the magnificent stuff from the past being eclectic, but he said that would be too much of a compliment. He then said it's junk. And also some informed citizens look at it that way, as this guy who's quoted here as a response to Kurt Sandberg's blog on civil beat. And next picture, not only enough, but next picture, one of our informed Doko Momo members took this picture while driving and because it's referring to a show we did, this is Warped Plaza and we were hoping it would stay around for a little longer, but unfortunately doesn't look like it, right? No, it's got a fence around it and it's going to be demolished and that is a disappointment to us. So that's sad. And so on a little bit more on the bright side, on my way back, then I had an unexpected stopover, next picture, and they put me up in this nice little piece and it's interesting because they probably didn't want to put me up in the most fancy slash exclusive, expensive hotel, right? No, they did not. So they put me up in the most budget one, and that's one that's classy that unfortunately maybe we don't see that these days anymore. This is in 1969, what was it called? SeaTac Motor Hotel. And it used to be, thanks to Mike Guskert who helped us out, it used to be the largest motel in that region at its time. That's right, it had 800 rooms. Exactly, and some of the features that we see here, the big linear detail at the top reminded us of the project we actually want to talk about today and next picture, it's still connecting to, I'm still a little homesick because my, I had to leave my sweetheart Suzanne back home and we want to talk about the project we briefly touched on in her show Tropical Tourism where she was when she was here 20 years ago as an au pair and tell us where that is and what that is. We are talking about the Kahala Hilton Hotel and the Kahala Apartments and so this picture Suzanne is on the balcony of the Kahala Hilton Hotel and the apartments are beyond her and if we go to the next picture, we see an historic view when the hotel first opened in 1964 of what it looked like looking towards Cocoa Hand and Cocoa Crater from this new wonderful Hilton Hotel. And you have another picture that you hold on to and give it to people upon special requests that shows actually the actual hotel room behind and there's something interesting because the hotel layout, the plan is pretty generic, an American typical standard double loaded corridor but the trick they did is that they turned the hotel room sideways so it's actually facing outside with its long side and that way it looks way more spacious because if you look at the facade, it's pretty generic, it's pretty much punched in holds, the opening isn't too big but the trick is it looks much more big and spacious as it actually is. Yeah, there's a secret inside. It is. Next picture gives us a clue about the offers behind and this is on the left is the architect Edward Killingsworth who we see a monograph about his work at the very bottom and no surprise the middle picture at the bottom. This project is published in there and who's the guy on the right who's actually his client. Yeah, the guy on the right is Conrad Hilton who is the head of the Hilton Corporation and at this time when the hotel was built in Kahala in 1963-64, the Hilton Corporation was very actively expanding internationally and it was building hotels outside of a lot of the traditional places where they had already been built in downtowns and other places and like that and the Kahala Hilton is a perfect example of that exact type of motion that they were going through. So and Hilton most likely next picture hired a Killingsworth based upon this project here because Killingsworth participated in the very famous case study house series from mid-century which happened on the west coast in America and this is the case study house number 25 that he designed and what they all share is this sort of zeitgeist of these progressive young architects who made architecture that was very simple almost austere from the outside but next picture once he went inside it totally blew your mind because it was like giving you something spectacular mostly blurring the inside with the outside here actually bringing the outside into the inside because there's this courtyard that has some louvers for shading but it's otherwise open to the elements and big windows and big windows and it's introducing the element of water into the architecture yes we're going to see that again we do that but before that step back and tell us a little bit about more about the side to sell the next okay well in our next picture here is an aerial view of the site of the Kahala Hilton hotel which would be in the lower right corner sort of in the center part this is the Wailei golf course which was constructed in 1927 for the guests of the new Royal Hawaiian Hotel so people would have been taken from the hotel to this golf course obviously it wasn't easy wouldn't have been easy to build the golf course right next to Waikiki and in the 60s this is where the hotel got built and in the next picture we've got a view from the new hotel looking out over the site of what became those Kahala Hilton apartments as well as the parking structure for the hotel this is what it looked like right when the hotel opened before these other things have been built which we're about to show you and in our next picture as I was saying here's a here's a view an architectural rendering of the hotel on the left and the apartments on the right and when the hotel was first built it was considered to be so far away from Waikiki the people actually wondered if guests were going to want to stay there and in fact that is what happened in a lot of very important people politicians as well as movie stars and other personalities liked the fact that the hotel was not right in the middle of Waikiki as was the Hilton Hawaiian Village Hotel which we see down in the lower right corner with the pink Jeep in front of it which we're referring to a show that we did some while ago that's correct look this up guys right and in the next picture we've got a view of the dining room this has been altered since it was originally constructed but they also built that little that little island offshore so that you had something to look at that made it an even more romantic Pacific South Seas type location so very exotic as we like absolutely so it is the next picture absolutely stunning architectural feature right and that walkway over the lagoon where the porpoises are jumping for many years was like that just this thin very elegant looking concrete strip with no railings and nowadays it's this very hunkered down very significant structure with railings in those days they had it totally different and where did these good times go exactly and this is also the on the far side of the lagoon has also been developed since this picture was taken as well and the next picture shows us this is being fuzzy because we can already jump to the next picture because the big architectural challenge was how do you basically make this big chunk of a program and building basically blend in and not looking austere and monolithic exactly and we jump to the next picture it gives a little bit of a detail where you can see it sort of trellis the sort of cumble flash with this additional layer and in the front you also see some very sort of industrial generic these are these famous double T's that we see at the end of the show some of us like these days again so these are it's it's a very sort of international style rational building that yet sort of had some reference to some sort of vernacular tectonics which we see on the next picture which is actually a preview of the projects we're actually going to talk about but he did the same in the hotel and in here you can see this very bony sort of language right of architecture skeleton a freestanding skeleton around to these structures absolutely but before we go there let's stay in the hotel and go to the lobby right quick next picture yeah so this is the original lobby of the hotel in 1964 and a very recent view of the lobby and you'll see that while the furnishings have changed they've kept the same basic structure as well as those specifically commissioned light fixtures which have what look like beach glass pieces from them that are kind of an icon of the hotel so they've never messed with those even while they've made other changes and another part sort of a lobby as well as the next picture is this sort of open area where the the water pours under the building and I guess where the dolphins are right right and this is still like that today it gives this very much more lighter appearance rather than monolithic solid appearance and if we go up in the building next picture we can pretty much see this sort of you know signature language of killings worth that on the left is that case study house you can see how he brings the outdoors inside and the same is in the multi-storiness of the of the hotel where through extending out these beams and sort of you know bracketing these members you almost have the feeling he's creating another sort of outdoor space like a lanai yeah and while you know this project also I forget to put in a slide but there's if you if you Google you find a lot of celebrities throughout the year staying in the hotel right I hope you guys go to Diana Ross which I do this Friday and it wouldn't surprise me if you would stay there I mean that's true and that's one of the things I said when president Johnson came here in the 1960s for peace talks involving South Vietnam he stayed at that hotel because he could be taken there by helicopter and land on the golf course and he could be guarded more easily and next picture we actually now go next door and talking celebrities this is certainly not both projects are not basically a low budget or inclusive they're rather exclusive they are up to these days you can see the cars there speak for themselves but there was also a famous guy in history related to Hawaii who actually permanent lived there in our project that's right who was that okay well that was Jack Lord and and let's come back to the studio so we can show people what we're talking about and there he is that is the German version of Hawaii 50 with Jack Lord on the cover and Jack Lord lived at the Kahala Hilton or the Kahala apartments because it was exclusive because it was attractive it was convenient for him to get to work at the Diamond Head studio where he worked and again upper class expensive exclusive and very trendy at the time it was made and I have to thank my best friend Stefan who gave me this set this is actually the second season and these have the entire you know CD set in there and again as you were surprised you never heard this in another language this is a Y5 no and it is also tells you how popular that still is absolutely this is legacy and tradition of the islands and so is the building so next picture please because the building is actually a non-building this is how you approach and it looks like a jungle this looks tropical this looks lush and next picture the architecture in there also looks like you know trunks yeah but they have this nice feature of a negative corner in architecture we call this the mesian corner so they went through some effort to actually make the the structure more more skinny more more delicate as I just said it's less monolithic it's less heavy it's less weighty because it's got that empty corner and it goes exactly along with what we're saying it absolutely and the next picture also the beams the beams don't just stop where they could stop according to their primary function the right here they actually project out yes and this is an interesting sort of play that's typical for these mid-century howly architects who came and we're looking at indigenous structures because when you were doing the the hollies you had to do that because you had to latch them and so you had to project out with your memory to get your stuff around right so this is an interesting but it's not a basically a literal which everything we see today is a palm leaf imprint or a chevron or something this is truly modern but it's sort of an exotic modernism yeah and it's an abstraction of what the exactly what you were talking about of an of a traditional building style and it does serve a structural function but it also decorates the structure in a very attractive exterior way that looks I wanted to say both of these buildings to me look really elegant and I think the thinness and the the airiness and the delicacy is what gives them that elegant appearance absolutely and next picture here comes that water feature again here is the building in part sits in water and that's rather challenging to keep that you know the water from not stinking and also keeps from the building not getting wet so this is pretty high and pretty luxurious and it's just beautiful I mean this is as tropical as you can get it also in the only in these you know climatically privileged tropics evaporative cooling works a little bit so this also helps to climatically cool the building so it's not just decorative and as you said too this is a very mid-century technique exactly and we occurred in other places and another feature you know what else do we associate with the tropics and when we swim here tropical fish next picture there we are here they are there we are it's all incorporated so it really has an exotic theme we can say next picture but again the architecture is almost hidden I mean these are actually so the the floor plan of this building is like a comb or like a hand with the fingers and the fingers are actually the the dwelling unix and so they're these linear courtyards they're heavily vegetated yes with these with these tropical vegetation correct as we can see and next picture every now and then sort of the architecture glimpses through yes so it's mostly not existing but every now and then it just pokes through as you can say with these sticking out members and you get the sort of dialogue between the natural branches and the artificial and also because this is an expensive building they are able to do that level of landscaping which you do not find in most buildings because it's so labor intensive and it's expensive yeah also in maintenance that's what I mean yeah it's expensive to maintain all of that absolutely and the next picture is showing something when you actually see the architecture and there's something unfortunate happening because the the story in the middle is actually the original one where it was all open and the lanai and you see the ceiling fan it was easy breezy and I heard at some contractor came in some many years ago or you know manufacturer of these aluminum window systems and basically sold it to the clients with the result of putting a c in making it more hermetic and you said it was all about the maximization of square footage raising the value because all of a sudden then that became living space so your your unit became bigger that's it was all about the money that's right all about capitalism and initially it was a cultural approach to seeing we're in Hawaii we're in the tropics we want to love the outdoors right and another unfortunately the original thing which was unfortunate is the next picture which is the circulation which is the hallway and you were quoting your mother and having known people who basically lived there and even you know criticizing that way back absolutely that she thought the building was very nice and when it was a new building in the 60s of course you all everybody wanted to go see it because it's got a lot of publicity and I remember she's always maintained that it's a beautiful building and the units are nice except the callways look terrible yeah and who am I to criticize my famous colleague killingsworth but I would say and I'm sure maybe he probably would have done it just you know keep the beams running across and making a catwalk that's separated from the walls as he actually did in a project we see very soon and then having some linear skylights to bring the light down maybe even making the the courtyard outdoors which he has done in other projects but as you said this was probably not on a tight budget but was made to make profit yes so that probably the dirty term of value engineering probably happened here I think it did but next picture at some other um details you can still see the original this is a really nice delicate filigree jealousy wooden jealousy with this original hardware that's still there and speaks of the sophistication of the architecture both architecturally and climatically yes and another nice feature is next picture which is also part of our permanent background where there's this planter so architecture you know at the ground floor and some plants are incorporated into the design and this planter trough and then it's also you know staying true to that theme of sticking out projecting out and I think that the thing that strikes me is that's concrete but it doesn't look massive no it still maintains some level of delicacy or lightness in spite of the material and good point because actually of the end because it almost seems that this ant cap is pushed back in yes so you see the trough in section is actually a U like the letter U and he just inserted and that that's a sort of level of sophistication that especially mid-century architects seem to have more than unfortunately these days correct and this picture I took this at the end of the the unit facing the ocean which we can see in the next picture where this is the conclusion of the project and all of a sudden you know you get out of the jungle and all of a sudden you're at the ocean what what a surprise what what a spectacle yeah and I can also point out that jack lord and his wife Marie lived in one of the optimum units in the building which they were able to get of course which was at the end right next to the Kahala Hilton so they didn't have as many neighbors and they looked out right on the ocean beach so they chose the nicest one absolutely and probably no surprise to our viewers we often have a mission the mission of this show here is we go to the next picture to prevent this project to happen to at what happened to this nice project here which is also a killings worth project on another island which one so this is on the island of Maui at Kapalua it was a Kapalua Bay hotel and as you've pointed out when the well essentially it's been demolished and bummer yeah it is and it again is something that you wouldn't be able to replicate today and it wouldn't be replicated and you see I mean you know he was working here with four columns yeah you know as opposed to one and was really indulging in this theme of bracketing of layering structure and we got the projecting horizontal members as well you you got the water pouring in you got you got nice shading and in a what a shame and especially what a shame because next picture we don't want to look at that too long but I'm just quoting basically Jay who says you know modern architecture is mostly junk and you know this is what replaced it this is what replaced it and this is a generic developer thing and none of the the passion and and and dedication to an interpretation of of local sort of exotic inspiration we see here and I think also too it's fair to point out that the level even a concrete building even a plain concrete building or not plain but a concrete building can have a lot of elegance and it can have a lot of detailing which sets it apart from everything else and that's what we saw with the Kahala Hilton and the Kahala apartments I like that the way you put this and before we actually I want to go a little deeper into that but next picture I want to not forget to thank the one that I I owe you know that I was able to take the pictures all the pictures I took because Nathan Tuthman and his family had the chance to live there for a while until they were not able to afford it anymore but this is his elevate which couple shows ago we we we featured it and you can say with the sort of the the filigrenous and the elegance of these members you know I think to a certain degree probably it was an inspiration and Nathan and Tiffany told me it was so thank you guys for that and the next picture is is my testimony of of me and my family business being very sympathetic to what you just so nicely said that these are all bare-to-the-bones buildings these are bear tectonics and even in their completion phase they basically stay like that and there's nothing wrong in celebrating the raw and rugged of construction and achieving you know elegance and delicacy we don't need this sort of makeup that we see on buildings these days right and we also don't need bunkers no we don't need concrete bunkers and that is kind of the easy cheap cheap and dirty way to do it and to get beyond that may be more expensive than what people consider to be affordable or possible exactly and so this here being said next picture a great local master of the same thinking of the same ideology if you want so was the structural engineer behind the project this was Dr. Alfred Yee and these are pictures from his website because he was the structural engineer of record for the building and here you can see it going up and he very proudly you know talks about the efficiency and effectiveness of the construction so it's very sort of cutting edge at its time very modern very prefabricated and and then again but you see you know it's when you see the how close the the units are if it wouldn't be for the vegetation that is so important people would have never like this it was oh my god i can see my neighbor oh my god it's so close i don't like that so you know a little bit sort of respectfully disagreeing with you when you said well today you know vegetation people are afraid because of the maintenance but if you look at a jungle an actual jungle is no maintenance right so the question is which kind of plants do you plant you always use this nice term of decorative or ornamental if you use plants are not native to here you got the trouble but if you choose the right plants that maybe need a little less so why don't we incorporate more landscaping is we don't we haven't talked about landscaping very much but that is absolutely crucial and it is a matter of maintenance what will grow what won't grow you simply cannot put a plant in the ground and say i like that therefore i want it there it will not necessarily live it's just like building a building you can say i want the building to look like this you may situate it in a place that it won't work absolutely so the next picture shows uh Alfred Yee and actually this is a top right as a picture i took in his office when i had the chance to meet him before he unfortunately passed away about a year ago and so these are all the pictures of the projects and these are all the projects we basically have covered or will cover because these are the most innovative you see Alamoana hotel you see the Frank Fawzi building that i think we should do a show about uh we have a little mention of it we did we have Alpha Prizes Arizona Memorial and then you know it's sort of hard to see because they're reflecting but there's tons of more out there and there here is the Kahala Hilton hotel and the condominians and at the bottom right is is Dr. Yee and myself and me with a lot of i was very nervous and went there because i was uh asking for his advice about a project that we have shared with the audience a couple times and we will now do with the last picture soon which is Primitiva and i basically asked him about you know structural issues and uh i was i was so touched because i got the biggest compliment from him that we could have gotten because he said Martin it actually reminds me of Queen Emma Gardens which is another project he has done which we also should do a show about yes and he said just like Queen Emma Gardens it's a building that lives that is alive and he said i don't want to talk about structure we can figure this out this is no rocket science but i want to talk about the human humane the name of the show aspect of the building and the approach right so here's Primitiva and you can see an homage to uh Killingsworth and an homage basically to Alfred Yee as the team and to why don't we do the raw and rugged again and the necessary why don't we live easy easy why don't we incorporate nature and people and all of that into architecture so with that we're we're at the end of the show um we see you guys in two weeks and a project that's somehow related because now we're onto wanting to save the few good vintage stuff we have on the island so we spotted another one that we think we should you know address which one is that we're going to talk about La'au Gardens La'au Gardens and the La'au project or the La'au area is uh two three-story walk-up buildings built in the early 1960s the La'au Gardens is one of them yeah um we've had discussions about the different buildings that are located in this place what we like what we don't like etc um and we probably the probably are threatened um we know redevelopment is very likely for that area and so we need to at the very least document it talk about it and at least advocate for some of it to be retained if possible very good and speaking of advocating next show is going to be with Chief Sock Socrates from the Honolulu Fire Department all right who's a great supporter of some of the ideas we had true so uh we look forward to that see you then and until then stay as exotic as you can bye bye


Hi, everyone. Good evening. Welcome to KubeCon again. I saw some of you in the morning session. So some of it is going to be It's going to be of a repetitive in nature Just to introduce ourselves a few of the maintenance of the project late mass chaos are here. I'm Oma Mukhera We have Karteq and Udit. All of us are Been with the product project from the beginning for about last five years So happy to answer any of the questions that you may have and we also have an end user of the project Siam Patak director at CVO and he's also a CN safe ambassador. So we have about 30 minutes and then we will take, you know, quick Q&A in the last five minutes, but For those of you who are new to litmus, probably I'll Rush through the first five minutes on what's litmus is and why litmus and then Karteq is going to talk through about How the journey has been for us and then what's what you can expect the rest of the year from the project and also then, you know, how can you contribute? We're obviously interested in working with the community and taking more contributions So, you know, how can you contribute if you're interested in contributing, right? And then Siam will do a quick demo of it So outages are expensive business reliability service reliability is very critical to business. You don't want to get into the irreparable damages that are caused by outages, right and even though your systems are always thought to be built for Reliability you are building redundancy in your systems Failures are inevitable, right and failures will happen if not frequent It's only a matter of how often they often happen then, you know, whether they happen or not, right? So how do you really avoid service downtimes? That's the bigger question that we need to ask as we move towards, you know, Kubernetes based microservices deployments, right? So as part of this, we all we have seen Importance of the following metrics continuously being, you know, talk more and more in the business discussions You know, how fast you can recover from your outages and how Can you avoid these outages or how can you increase the distance between these failures or outages, right? So the answer to that is adopt chaos engineering from beginning and as much as possible in your all phases of DevOps or cloud native DevOps and also chaos engineering Is not a magic bullet. It's a step-by-step method to build a kind of a culture into your DevOps practices that you always start with a few small chaos tests and then incrementally start building, you know over a period of time automate them etc etc and Why is this more important in the cloud native world? That's because you have more dynamism There are more containers to deal with and your view of your code is much much smaller There are so many things that are changing outside your code So you want to be able to test how my code works when something else fails, right? So that's very very important and this code always keep changing faster and faster, right? So all of us are trying to see how can I increase my ship time, right? So that that's one thing that continuously is happening. So together with more number of microservices and The faster shipment you have a situation where there's so much dynamism and you don't know how to take care of Or how to ensure reliability so chaos engineering definitely will help there So chaos engineering think of this as a DevOps culture is no one's responsibility Anybody can start you can do move left or right But important thing is that someone has to start doing chaos experiments in the entire DevOps and then start training others Right, so that's that's what is important and late must helps you do that. It must is a project which is Going to provide you a full platform To manage and orchestrate your chaos experiments across your team members in the entire DevOps, right? So it's got a centralized Portal or control plane where developers sres and QA members even your management can come and see what's going on with respect to reliability in your DevOps and You can take actually some control on building resilience into your system, right? And it is a Kubernetes app. It works for non-cubinities targets also, right? And they can actually execute chaos experiment across various cloud platforms as well How do you get started with litmus? It's pretty simple. It's a helm chart You can actually deploy it on any Kubernetes it takes minimal resources being a Kubernetes app You can extend it as you grow with chaos or we also have You know hosted control plane, you know litmus chaos or cloud just to get tested and then keep going, right? so you basically start with simple installation either by helm or signing up and then You start connecting your actual targets through litmus agents to your control plane and then start creating your chaos test Litmus gives you a set of experiments already about 50 plus experiments and it gives you a good SDK API you can be very creative You know once you get a hang of it and then you can start running chaos experiments and start running analytics seeing how reliability is improving across Across your CA pipelines or CD pipelines. So we got a bunch of experiments I think you can go to hub dot litmus chaos I o and then start seeing it and this is one area where we've been You know seeking More contributions, right? So as you learn chaos and as you You know experiment with chaos you get better ideas you can upstream them for the community to get used So chaos experiments are stitched into chaos work flows and chaos work flows is nothing but your your chaos test Right so you can actually once you build chaos test You can schedule them or you can put them into your githops, right? So as you deploy your deployments chaos can be triggered automatically or it can inject them into CR CD pipeline Or you can just ask your developers. Hey, you know, I have some chaos test You can run yourself, right? I know and just do it the cloud native way or cube cuttleway so it's a very stable and You know reliable project we've been seeing people using it for last few years In an enterprise the way so it's got a full list of features that you can go and you know learn more about But the next thing is, you know, like cardiac and as a maintenance are going to actually talk about what has evolved in the last Few years and what you can expect In the year and you know going forward so with that I will invite No, kothic to take us through the next few minutes And maintain a session you might all be interested in learning about how the litmus journey started and whatever the decisions We made along the way in building a cloud native chaos engineering platform. So I'll just take you through that so we built litmus basically in response to a need to test the resilience of a SAS platform that we were internally building and We wanted that was cubanities based So we wanted to go ahead with a chaos engineering platform that helped us to do chaos on a cubanities Based as a platform and do it in a cubanities native way. There's a lot of cubanities being thrown in here What do we mean by that? So people are used to running operations on cubanities clusters in a certain way everything is declarative Everything is a resource and the resource is reconciled And most of your application life cycle management Security policies and so much else is being done in that way you would also expect Would also need the resilience tests to be done in the same way sort of homogenize the way you do chaos experimentation resiliency tests and The platforms that were available at that point of time the chaos tools were not meeting that purpose That's when we went ahead and wrote litmus. The idea was to keep it open source and community collaborated because that's how people really use their That brings in a lot of rich libraries You could use that to create faults of different types Because everyone has their own idea of what to fall should be and then we went ahead and made a Plug-in based chaos platform that is you could bring your own experiments. That's what you see on the right side You could just get your own fault business logic Container is it run it as a cubanities job instrument it a little bit and then it'll be Orchestrated as part of the platform that makes it easy and standardized for all people to come and write their own faults So the initial deliverable there was creating chaos experiments as custom resources You had an operator to carry out the business logic defined within those custom resources we put all those experiments as part of a hub and By OC is just bring your own chaos. Just keep expanding the hub. That's what we had initially And then over a period of time we got some feedback on how we should improve People needed a way to centrally manage their chaos on their cluster fleet Not gone individually track chaos experiments in each cluster have it all visible from one platform and They wanted to do complex scenarios. Okay, one fault is great But most of the time you have complex scenarios in your environment things are getting built up over a period of time in production So you're really interested in doing chaos workflows not just single faults workflows are a sequence of faults strung together in different order that you need and Then you have the ability to collaborate with your team members on the workflows that you created Store it in a git repository. Have a single source of truth and Add observability features here. We are talking about the ability to Set certain constraints around what should happen when your fault is injected be able to validate This is how your application behaved during the fault injection So add we added those features and then we also added some features around automation When do you want your chaos to be injected at what point maybe after a application got upgraded as part of some deployment by a pipeline or by some Github's controller like Argo CD or flux so That's the observability the automation the teaming and the user collaboration features and then the workflows these were the major additions that we made and all of them from one centralized control plane into which you can correct different clusters that are the target Environments for chaos, so that's the evolution and if we've sort of ended up with this there's a chaos control plane which is where the users come in and Say what they want to do as part of their experiments create their workflows manage it collaborate with their team members and on the right hand side you have the execution environment where the chaos actually happens and We've got Metrics that you can use to instrument your own observability dashboards to say this is how The application is behaving when a particular experiment is running so at this point I'll probably Just summarize what I just said the original principles you saw that in the first slide The ones they are the ones on the right hand side of this screen and on the left hand side We added certain observability capabilities with probes and exporters and things like that and added the ability to run workflows Schedule them integrate them with your github's flow Etc. So this is sort of broadly the framework for cloud native chaos engineering at this point that Liquid sort of defined and this is found some resonance within the community I'll probably let umar talk through some of the use cases the way it's being used most commonly and Then we'll go back and speak about the roadmap after that I'll probably in interest of time. I'll just rush through we talked about this slide in the morning as well You know the the main point that we need to take from here is chaos is also for Qa and developers, right? So the way litmus is architected is you get a declarative file a YAML That's well Tested by somebody in your DevOps and then you can actually go and use it elsewhere Wherever you see fit, right? So think of chaos testing spreading across DevOps and There is incremental feedback being built as a shift left or shift right into that, right? so that's that's probably one of the things that I wanted to share and You can throw into game days or CI pipelines or CD pipelines And one of the most common things that we have seen happening in litmus is that being used along with github's, right? people trigger chaos as a task of You know deployment happening As part of your CD CD pipeline, so you you can easily automate it either using or the CD or spinnaker or flats it works with it's been tested by community and You know proven to work with most of the CD platforms as well so Some of the other things that we have seen litmus being used is also to test observability You have invested in your observability systems and you don't know whether something goes wrong Your observability system works well or not, right? So you can actually introduce chaos and see whether you are getting the right alerts or your people responding to your You know setup practices To such chaos or not, right? We're also seeing people testing it Kubernetes itself Kubernetes keeps changing all the time, right? So when you upgrade your Kubernetes stacks can actually verify your entire application against Possible failures happening in Kubernetes itself. For example, when a cubelet service goes down, you know, or you set up for a proper service redundancy or not. We are also saying Kubernetes being used as a cross-cloud control plane and you're bringing in a lot of infrastructure into New infrastructure into the consideration. So when such infrastructure fails, how does your service work, right? So how can you inject failures into some of the cross-cloud control plane? And then we are also seeing, you know, Kubernetes deployments are always hybrid in nature There is some stack that is not Kubernetes underneath So what happens to your service when failures happen under such stack? We're also saying people taking chaos all the way to your well-defined services such as, you know, Amazon RDS or other data services. Can you actually simulate chaos against such services and see whether your services are reliable or not? So these are some of the advanced use cases of chaos that people are saying But you always start with some simple use cases such as port deletes and then, you know, go further from there So with that, let me give back to Cortic, you know, to talk about the roadmap and then how to how to contribute to latency Yeah, I think some of the roadmap that you're going to see now is driven by all these new use cases that Tomah spoke about So obviously we are looking at a hybrid set of targets The the Kubernetes targets, of course, were the ones that were initially added. We are looking at more experiments that can also target infrastructure resources Better UX for the chaos workflow management by this we mean How can you construct a workflow in a very seamless way and execute it and visualize it? Improved operations support around chaos engineering. Whenever you execute a chaos scenario, there are a few things around it Where do you want your results to go? You want an artifact sink that you want configured? Maybe you're running a load test along with a chaos Experiment as part of your chaos experiment along with your faults. So you want to see how the results of that benchmark really came So you want to push it somewhere How do you ensure that the users on the platform have the right set of permissions? And they are restricted in what kind of actions or faults they can do on your system That's the RBAC and probes here is the ability to do advanced Hypothesis validation So there are a few probes today the scheme off which is getting continuously refined and new probe types are getting added and of course integrations with CNC if other CNC projects in the areas of observability at CI CD and just to achieve the overall chaos agenda Contributing to litmus, I'll probably let Odit pitch in we have various areas that Probably need the contribution. So I'll just let him talk through that for a few minutes You can contribute on a different different areas in litmus You can contribute a whole experiment itself and there are other components. We'll shortly discuss about that So what do you need to have before contributing to litmus? You need to have an ideate. You need to have a chaos injection logic What pre and post chaos checks you are gonna perform and how will you regain this stage? after the chaos is completed Then the sex Second step comes is fill in the attributes file You will have some attributes file that we need to fill to run an experiment to prepare a work to prepare a code Completion of the experiment now when you fill the attribute file You will generate a experiment scaffolding that will have all the functions that are required to inject the chaos to perform some pre and post chaos checks Once this scaffolding is done, you will have a business logic You will have some business logic Let's suppose you are running some part delete chaos, then your business logic is deleting a part So that means this logic you need to integrate with the functions After that the next step comes is Testing in the job now once you have all these Business logic created you can just dockerize it you can run some jobs and validate whether your what your hypothesis is getting Successful or not you are getting the part deleted and recovered or not Once everything is done now you will provide some metadata to the experiments that will tell about what the experiment does some more detailing and then you can simply add it to Committed to chaos hub and it will be publicly available to it must chaos hub now the other areas where you can contribute is Some as we discussed like the new experiments you can already can contribute now you will have You can improve faults it must today have more than 50 chaos experiments They are all having different different for different features They have different tunables you can always go and add some few features in that you will find all these in the shoes Good first issues are already created there You will have some UI UX bugs that you can fix or you face feel something that you can add on you can go ahead and add There are a lot of e2 test cases that you that you can write as of today We have pipelines associated for each of the experiments some unit test cases you that you can add for the code You will have the helm charts and charts are there for litmus installation. You can add some test cases around it You will you can add some documentations you see if something is not working You can just go ahead and add the documentation fixes for that. You will have some you can add your own use cases You have some observability integrations. You can add simply you have some CICD integration You can add so all these are the other fields then experiment that you can basically use now to To contact our developers to discuss different topics. You can just log into litmus dev channel slack channel It is present in Kubernetes slack workspace And you can also join us on litmus GitHub issues and you can see all the issues which want to address There are you can also share your feedbacks. That's very useful and Raise issues raise issues for discussion for all these queries. We are all also available in slack As I mentioned we are on community sync cups. You can come and Have your ideas there. We are also available in office hours These all you can join these meetings if you have some demos if you want to Contribute you want to talk more about it. Please join and share your experience there With this I would like to give the mic to say him for Giving a use case. Yeah, so So basically now we know how and what litmus does what are some of its benefits and how you can use it But let's see how we at Civo Kind of uses litmus and what are our plans to even expand it further? so Civo is Kubernetes provider Kubernetes service provider based on K3s So we provide managed Kubernetes which is based on K3s and how do we do that? We have our super cluster Our super cluster is having Cubinities the kids as a base on top of it. We have the cube work layer and on top of that cube work layer We have the tenant clusters that basically you when you log in to see when you create the cluster So you will be having the tenant clusters So when we talk about the tenant clusters the tenant clusters are having the complete control And they can run untrusted and unsecured workloads So we don't have control over that but at the super cluster level for us It is important to check the resiliency of our microservices to check the performance of a microservices that we are running internally For that we have litmus Which is installed so why a kiosk engineering for Civo is the first question that I'm answering So it becomes important for us to test all the resiliency of our infrastructure of our microservices which are running on our super cluster and For that we have litmus and now how do we do it? And how do we do it continuously because it's very important that you keep running your chaos as well So we have chaos implemented on our staging environment And we have created workflows that we keep on running in a continuous manner And those workflows are like different types of chaos experiments which are there node level experiments pod level Experiments code in a service if it goes down But what will be the impact we have to target those because we are a cloud platform and if anything goes wrong We we need to kind of you know think from the perspective if any bad Actors or bad people would be attacking then it would be good for us if we can find the issues beforehand and fix it rather than wait for anything to happen and Then we investigate what is happening So we can create multiple chaos like Kartek and Oma and Odit they mentioned there can be like bring your chaos experiments Multiple chaos scenarios that we can create So that we can think from those perspective What maximum bad we can do to our super cluster and we can save it from anything that will be happening in production The next point that I want to cover is minimizing the blast radius that is very important when you are doing chaos engineering Because as a cloud platform, we cannot you know just kill anybody's pod or kill anybody's cluster. It has to be resilient So we run it as of now in our staging environment, which is a complete replica of our production environment and a continuous manner What we want do want to achieve next is To run it continuously like it already has the CI CD integrations and stuff like that So in order like a new feature is developed So it will run all the existing workflows which are there and if all the workflows are completed successfully and They they like passes all the checks then that particular feature is supposed to production so I think that that continuous manner and Moving from staging for to production using the chaos experiments would would complete the story now Now I talk like this is a production super cluster and this is the tenant cluster which is there and litmus Can be installed. So how how this is happening? So on staging we run network chaos pod chaos litency and latency and core services chaos on We also give something to the customer. So like I told you we Customers have full control over their clusters But we have something called marketplace and in marketplace we have litmus from the maintainers So it is a maintainer maintained application that is there that a user can install on their cluster and perform similar experiments So we use on our super cluster and we give our users as well The litmus to be installed on their Kubernetes clusters, which is running on our platform to perform chaos experiments on their cluster So that they can also Do the same pattern of in a continuous manner Make sure their services and their workloads are running fine resilient and Yep, I think that's those are some of the areas that I wanted to cover like why chaos engineering is important and how to kind of use it and What would be to minimize the blast radius and how we give it to our customers? So that's what we do at sego But that I think I would give to Uma Yeah, I think yeah, we're good. That's all we wanted to share in this brief time of 30 minutes So we are definitely expecting more feedback to come in chaos is just becoming commonplace in DevOps So feel free to Take a look at litmus start slow, you know Move fast once you are convinced that chaos actually is going to help you And we are always available to take more feedback from communities So if there are any questions that we can answer here, we'll be happy to As we say we give license to chaos right so you can we can now use litmus and then play around and see Don't don't believe what somebody else is just see it for yourself break something and see, you know You get a call from somebody else or not Well, thank you. We are available on the litmus channel litmus dev channel for contributors. So we are looking forward to Not seeing some of you there. Thank you


Greetings and welcome to the Introduction to Astronomy. In this lecture we are going to talk about the planet Mars and more specifically its geology and atmosphere. Now, Mars is one of the primary planets that we look at for a possibility of having life and that's because it is the only planet other than Earth that has been known to have liquid water on its surface in the past. The conditions on Mars no longer allow liquid water but because that possibility existed in the past it gives us the hope perhaps that we are able someday will be able to find some kind of either life or fossilized remnants of Martian life that might have existed at one time. So let's start off looking at some of the exploration of Mars. Mars has been probably the best explored planet with probably two dozen craft that have visited it over the last 50 years or so. So we can go back to some of the earliest ones which would be the Mariner spacecraft. Mariner 4 in 1965 was the first successful Mars flyby. So it flew by Mars giving us our closest images of it to date. Mariner 9 six years later in 1971 was the first spacecraft to orbit another planet. So the first time we had actually orbited another planet in the solar system. Now a little later in the 1970s we had the Viking craft. The Viking 1 craft was a good lander on Mars and the first successful landing on Mars. And you can see it here. This is part of one of the feet of the craft as it landed and you can see some of the Martian rocks there close to where it landed. And that was a chance to be able to explore and look for life. The Viking lander drilled into Mars looking for samples and trying to test those samples for any signs of life. Now more recently we have the Curiosity rover which has been on Mars since 2012 and is currently exploring Mars today. So here we can see an image taken of it by itself, actually a number of different images, then stitched together to show us an image of the rover itself there on Mars. And it explores the entire part of the surface of Mars within the crater that it was landed on. So that is one way to be able to explore. And the rovers in a way are better than things like the Viking craft which landed but could not move. The Curiosity rover can move around and travel to explore slightly different areas. So if something interesting would be just out of reach for Viking, it's possible to direct the Curiosity rover there to be able to explore it. Now what kind of samples of Mars can we explore? Well we actually do have some samples of Mars here on Earth. Certainly the landers and the rovers have been able to study samples on Mars, but we have not yet had any samples returned to Earth. So we have not yet sent a craft that went to Mars, picked up samples, and brought them back from Earth here to Earth to study in the laboratory. However, we do have meteorites from Mars. So there are meteorites that we have detected here on Earth that show features that relate to them being from Mars. Now how can we get a piece of Mars here? Well, as with all other objects, there have been large impacts on all of the other planets. Not just here on Earth or just on the moon, but we have seen those on Mars as well. And in a very large, a massive impact, material could be thrown off with the escape velocity of Mars, meaning that it can then escape from Mars and head off into space. And some of those would eventually make their way here to Earth. Interestingly, we find that these are relatively young, only 1.3 billion years old. So they are relatively young, so something that would have had to have happened in the more recent past, not dating back to the very early history of the solar system four billion years ago, but only 1.3 billion years old. But those are samples of Mars that we could actually study here on Earth. Now let's look a little more detail at Mars and some of its surface features. So what do we see? Well, here is a nice image of Mars that we can see. We see some of the major features. We do see some craters. Not so much in this image. You can see a few scattered around. There are some cratering that does occur. So Mars is kind of intermediate between everything else. It has far more craters in the Earth than Venus, but far fewer than Mercury and the Moon, putting its age in between those two. So Mercury and the Moon would be the two oldest objects. Venus and Earth would be the two youngest. And Mars would be in between. We do see volcanoes on Mars, and you can see several of those off to the side here. There are three of them in this case, and there's another even larger one that we'll look at in a minute that's off kind of off the edge of this image. These are massive volcanoes compared to anything that we have on Earth. And again, I'll look at those in a little bit more detail, but they are incredibly massive volcanoes. One of the reasons for that is that Mars does not have plate activity, and therefore the volcanoes keep occurring in the same spot over and over again. So unlike the Hawaiian region on Earth, the Hawaiian islands, where the chain of islands is formed because the plate is moving, here on Mars the plate didn't move, and the volcano erupted in the same place. We also see great canyons, not like canyons on the Earth, but great tectonic features. And we can see what is called ballas marineris here. And that is a gigantic tectonic feature that has since been eroded away. This would stretch across the entire United States. So it's a gigantic one. You could put Washington DC on one side, and the other side would be out towards San Francisco. That is how large this tectonic feature is. So it is more like some of the great rift valleys that we see here on Earth than things like the Grand Canyon, which would be negligible compared to this size. We also see flowing water features on Mars. Not current, but enough to know that water has flowed on Mars in the past. So let's look at some of these in a little bit more detail. First of all, volcanoes. We have things like Olympus Mons. Olympus Mons is the largest volcano in the entire solar system. It is three times the height of Mount Everest. So were you to climb Mount Everest? That is the equivalent of getting one third of the way up Olympus Mons. We can see it here, how it stretches out. The peak here is the caldera. That's where lava would have flowed out. And then lava would have flowed down the sides, again, over billions of years ago, and spread out on the surface. To get an idea of how big this is, let's compare it. It's about the size of France. So if we put the two here, there is Olympus Mons in the inset here. So this is just about the size of France, would cover most of France. And this little section here is the caldera where the material would have erupted from. So this is an incredibly big volcano. Now the whole region, actually, around it is volcanic. And we saw on a previous slide, we were able to see three of the volcanoes. And let's look at them here again. Here are those three volcanoes that I noted on the original map of Mars. And here is Olympus Mons. This entire region is called the Tharsis region. And that is a hotspot region on Mars, very similar to Hawaii here on the Earth. However, the chain is not because of plate motions. It's because of just three separate hotspots. So one hotspot here and one for each of these volcanoes. And then they would have continually erupted in the same spot over and over again. Because of massive pressures underneath us, actually this entire region is pushed up by seven kilometers. So not only are there the high mountains, but this entire region here on Mars, as noted here, has been pushed up much higher above the regular surface level of Mars. Now Mars is not all volcanic. We have other features as well. Let's take a look at Valles Marineris. So let's take a look at Valles Marineris here. It is a very long canyon, 4,000 kilometers long, much, much larger than the Grand Canyon here on Earth. So as I said, this would stretch across the entire United States. You can imagine some of these little side canyons would be similar in size to the Grand Canyon here on Earth. It is formed by a different process. The Grand Canyon on Earth is formed by running water. So water in the river that has eaten away at the ground and caused it to erode away. Here, this is actually a tectonic feature that has crack, essentially a big crack in the crust that where the crust was separating. So very similar to a rift valley here on Earth where the plates, maybe plates, that were starting to form were actually separating. However, Mars was much smaller and cooled off too fast for all the plates to form. And so this region is kind of locked in place. Now, one thing we note is that the Tharsis region is to the left of this image. So that would be over on this side. So could that be the cause of this rift? Is the volcanic region there part of the reason that the rift happened to form at this specific point? But Valles Marineris, again, one of these very large features that we see on Mars. Now, Mars does have an atmosphere as well. So we can take a look at that here. It is an extremely thin atmosphere, less than 1% of the Earth's. So we can see it a little bit in the image here off at the edge where it's a little bit hazy. That is looking through with the atmosphere. But it is very thin. So even if it had the same composition as the Earth, you would then be unable to breathe because the pressure would just be too low. However, its composition is also nothing like the Earth. It is 95% carbon dioxide. It is 3% nitrogen and 2% argon. So no sign of things like water, no sign of things like oxygen in the atmosphere. The thin atmosphere does have some very high winds and dust storms, where high winds will pick up dust from the surface that result in dust storms that engulf the entire planet. So they don't just cover part of Mars, as a large dust storm might cover part of the Earth. However, they can cover the entire planet. So very extreme dust storms that occur here on Mars. But it's a very, very thin atmosphere, thick enough to have to worry about if you're landing, if you're trying to go through it, where it would cause friction, but not thick enough to begin to be able to breathe. So the last thing we want to look at at Mars here are the moons of Mars. We didn't have any moons to talk about with Mercury or Venus because they don't have any. However, Mars does have two small moons. We have Phobos, which is the doomed moon. And we see that one here on the left. And we see Deimos, which is the other moon of Mars here on the right. Phobos is only about 6,000 kilometers from the surface. That's very close to the surface of Mars, actually so close that it orbits faster than Mars rotates. So that means that it moves faster. That means it's moving through the sky and will end up rising in the west and setting in the east because it is moving faster than Mars is rotating. And its motion dominates its rising and setting. It is being torn apart by tidal forces. So when will it be gone? Well, you can see some of the stresses here, these lines that occur, are actually some of the stresses that are beginning to slowly pull it apart. That doesn't mean it will be gone tomorrow or next year or even in a decade, but in millions or tens of millions of years, likely it will have been ripped apart and probably crashed into the surface of Mars. And then Mars will be down to just one moon. Deimos is the smaller of the two. And we can see on both of these we do see impact craters. So they have been hit by smaller objects as well. We don't believe that they form through a giant impact like the Earth's moon. We feel more likely that these have been captured. These are asteroids that have been captured by Mars. Likely Mars being so close to our asteroid belt had lots of asteroids pass near it. And these too happened to pass just right to be able to be captured. So let's finish up with our summary as to what we've covered on Mars here. First of all, a large number of spacecraft have visited Mars and more are planned. So lots of exploration of Mars coming up. We do see large volcanoes and large canyons on the surface of Mars, so very large features compared to what we see on the Earth, especially for such a small planet. The atmosphere of Mars is very thin and is primarily carbon dioxide, much like Venus's atmosphere. And we did note that Mars has two small moons, which perhaps are asteroids that Mars captured in the past. So that concludes our lecture on the geology and the atmosphere of Mars. We'll be back again next time for another topic in astronomy. So until then, have a great day, everyone, and I will see you in class.


Hey, this is Brett and this 2020 Ram 2500 Crew Cab Short Box Big Horn Level 2 Night Edition is stock number 14436Z. I am here at Summit Automotive in Fond du Lac, Wisconsin, you're new and used heavy-duty truck and Ram headquarters. This 2020 Ram 2500 Big Horn has the 6.7 liter Cummins diesel engine. It is paired up with the 6-speed 68 RFE automatic transmission. This truck has been fully safety and inspected by our service shop has a fresh oil and filter change. All the fluids have been checked and topped off, and this truck is 100% ready to go. It's got a lot of really cool extras that I'm going to go over in this video and I'm going to go all the way around, show you all the options, go inside underneath, start it up, and take a look under the hood to give you the most accurate representation that I can of the vehicle. Patriot Blue Metallica is the color shoot all my videos in 4K. If you like the video, subscribe to the YouTube channel, click the bell notifications, get updates on the videos I do each and every day as well as having access to one of the largest catalogs of vehicle walk-arounds on YouTube, and stay current on our ever-changing and vast inventory here at Summit Auto. So first off, this truck is really cool. It has been completely bed-linered on the lower rockers and the lower parts of the doors here with color-match bed liner. It just looks so good and it's so well done, and it's on the bumpers as well. The night edition gives you the 20-inch painted alloy wheels, no major scuffs or scrapes on them, and it comes with Toyo tires, Open Country ATs. These are LT29560R20 tires, and these tires have, I would say, probably 70%, 80% of the tread left on them. This one does have a leveling kit on it. I would say probably two and a half, three inches of a leveling kit on there. Frame and underbody is in nice shape. This is a one-owner clean title history from Ohio. Front fender is in excellent condition. You also get these nice fender flares on there. Those are not stock only. The Laramie's come with fender flares or limited as well, but the big ones do not, but those are added. They look really good. Headlight lenses are nice and clear. You get the blacked-out headlight bezels with the night edition as well. That front bumper, as you can see, has been bed-linered as well, and that looks really good. There's no dents or dings, and it'll keep it free of rock chips going down the road in the future. Front bumper parking sensors. You get the gloss black grille, also part of that night edition, and the hood is in excellent shape and it's in a major dents or dings on there. You do get the cab lights up top and the passenger side front fender is in very nice condition as well. Note you get the blacked-out Ram Cummins and 2500 logos part of that night edition too. Passenger side front wheel, no major scuffs or scrapes on there. Patriot blue metallic. It's got a lot of metal flake in it. Really a good looking color. There we go. Paints in nice condition, and as you go down this side of this 2020 Ram 2500, just take note of how clean the body is, how reflective and mirror-like that paint is. I take these HD videos, so if you're far away or even if you're close by and you just cannot make the trip down, but you're still interested in purchasing the vehicle, you can see the truck, hear the truck, and have confidence in what you're looking at before you even get here. So when you do get here, there's absolutely no surprises, and you can make a smart and informed buying decision from wherever you're at. If this video helps you make that buying decision, let your salesmen know that you saw the video, and that Brett sent you back wheels into excellent shape as well, and the back tires have just as much tread as the front tires, maybe even a hair bit more. Ohio, definitely a good place to get a truck from. Very little snow corrosion under here. It has all the remaining factory exhaust on it as well, and the underbody's in really nice shape, and check out that underliner, that bedliner there. It goes all the way onto the lip there, and even a little bit on the inside too. Factory painted black step bars. Those look good. And the passenger side box, no major dents or dings on there. You do get the LED tail lamps. Rear bumper is also bed-linered, and that looks really good as well. Full towing package, which includes a receiver hitch four pin and seven pin wiring, and you do get the backup parking sensors. Tailgate is in very nice condition. No dents or dings on there. It does have a shock down assist, which is a really nice feature. Spray and bedliner, fifth wheel and goose neck prep package. Four pin and seven pin wiring, as well as side box tie-doms. Spray and bedliner goes onto the tailgate, which is very nice as well. Shuts nice and solidly. Coming down the driver's side, just as clean as that passenger's side. No major dents or dings on the box. And for full disclosure, this back wheel just as nice as the rest. Cab and doors all look really good. This one does have the heated fold-up tow mirrors. It also has blind spot monitoring and built-in directional signals. They fold up like so, and in like that. Take a quick look at the back seats. You get the dark charcoal and black cloth interior. Latch child safety system for any child car seats you may have. Power sliding rear window with the built-in rear defrost. Seats are in fantastic condition. They fold up. You get a load floor back here, which is really nice. You got muddy boots or tools. Put them on there. You're not going to get your seats dirty. Or if you've got pets, put both sides down. And they can lay on both sides and not get your seats dirty as well. And have a nice place to lay. Storage underneath. You get the all-weather floor mats back here. As well as in-floor storage with removable vents for easy cleaning. You can put ice and drinks in there.  If you're not in Wisconsin, just extra storage space. You get two USBs, two USB-Cs, and a 115-volt 400-watt plug-in back here. Side curtain airbags on the front seats. Child safety locks on the back doors in the inside and bottoms of the doors all look really good. You can see where that bedliner goes up to. Here is the VIN sticker. No previously owned in Canada vehicles here.  No rips, no tears on these seats. Both of these front seats are heated. Power driver seat with lumbar. Factory all-weather floor mats. Auto headlamps, power pedals. Power windows lock some mirrors. You get the cloth bolster, the wood grain trim, and these mirrors do power fold in. I always like showing both sides so that you know that both sides are working properly. Hop inside, check out the miles, the radio, and everything that this one has to offer on the interior. You can see that this one has 56,694 miles on it. You do get the 7-inch LCD display with the digital spinometer and compass display, battery voltage, and oil temperature. You can change all those corners to read pretty much whatever you want. This one also comes with the heated leather wrap steering wheel, cruise controls on the right, as well as gear selector, Bluetooth and information center controls on the left, and audio controls on the back of the steering wheel. This one does come with the 6-speed, 68-RFE automatic transmission. There's a shifter right there. Push button start, push button four-wheel drive. This one has the 8.44C radio. You get AM, FM, and Sirius XM radio capabilities.  You also have your heated seats, heated steering wheel controls, and your backup camera, which they've made those crystal clear HD on the RAM heavy duties, and to get hooked up to your built camper trailer the first time every time, and you can zoom in on that receiver hitch for even better results. Down here are your apps. This one does have projection manager where you can project your cell phone to the screen via Android Auto or Apple CarPlay. So while this one doesn't have a nav system on it, project your phone up there with Waze or Google Maps, and it's like you have nav right in the screen. We did a demo on an 8.44C radio with Android Auto. If you want to check that out, that's in the upper right hand part of the screen.  You do get two USBs, two USB-C's, and an Augsjack keyless entry with remote start. You do get these sliding cup holder and coin tray right there. And down there is another 115V 400W plug-in. Passengers side, floor mat and seat are in excellent condition. There's well no rips or tears on there. Headliners in great shape. And you do get map lights up here. Power sign with your window controls, auto dimming mirror, and your home link buttons for your garage door security systems and lighting systems. Let's start it up and take a look under the hood. Starts right up, no check engine lights or anything like that. I would personally like to thank you for checking out the video today and hopefully from this HD video you've been able to verify the quality, condition options, and just the overall good looks of this truck all the way around inside and out. All the lights are working very nicely through those cab lights up there. Under the hood we have the 6.7 liter Cummins diesel engine engine base. Very clean runs, very smooth. Once again this truck has been fully safety and inspected by our service shop All the fluids have been checked and topped off. This truck is 100% ready to go. There is the emission sticker. And I would highly recommend this truck from a quality condition and overall looks standpoint. I think it's in really nice shape and looks really good. I love the bed liner on the bumpers and lower rockers and of course the color patriot blue one of my favorites on the Rams. And I would highly recommend this truck from a quality and condition standpoint. And to see more pictures of this truck we have 50 new and used SkyroStrux SUVs, minivans, Wranglers, half tons, or quarter tons, one tons, you name it. We got to go to the website right there, summitauto.com, full pictures and descriptions of every single vehicle, all at summitauto.com. And if you want to check out more HD videos you can go to youtube.com slash summitauto. Click the bell notifications, get updates on the videos they do each and every day as well as having access to one of the largest catalogs of vehicle and heavy duty truck walk-arounds on YouTube. And stay current on our ever-changing notifications. In fact, in a second you will see a link to subscribe to my YouTube channel on the upper left, a link to all the Ram 2500 truck videos I've ever done in the upper right, a link to this vehicle on our website on the lower left, and a link to one of our latest YouTube videos on the lower right. Click those, check us out. We're super excited to help you with this Ultra Clean 2020 Ram 2500 Crew Cab Short Box Big Horn Level 2 Night Edition and Patriot Blue Mattel. Thank you so much for checking out the video. Remember to like, subscribe, and share on the YouTube channel. I really appreciate it. Have a great day.


Right guys, so here I have a genuine highland board And I'm going to show you what it's supposed to do Okay, so first of all, I'm going to just wind this down My ten turns probably should have done this and what we got here is we've got a ten ohms ten volt ten ohms resistor, okay, and And We are going to the reason I put this is because this is plastic on top it enables right on here So I put those up just on here to stop this and heads against to one sit on there So we've got a voltage meter That is connected here and here and we've also got a current meter and We are connected You know we're coming from the positive through a meter about through the native through the resistor Okay, so what I'm going to show you now is first of all is I'm going to show you how This pop down here the rest that we call it in the instructions the instructions That you get with these fake boards these ones Are actually the original instructions kidding if you look on there I'll put a picture up if you look on there from the original instructions You'll also see that the board has the voltage regulator Facing the same way as the past transistor, okay, so they both face the back. I mean it's ideally Situated in a way that you could probably Connect this to you He's saying if you want it to bet So what we're going to show you and then I'm going to show you You know how it doesn't actually work on this So first of all, let's give it some power and I'll just turn this down all the way. Let's give it some power Okay So as you'll see on both these meters not lots really happening till I start turning up and as you can see we're on one volt and automatically Just bring that down a little tiny touch. You can also see that we're on Yeah, not quite a hundred milliamps But that would be around about a hundred milliamps there and if we go up Couple of volts Let's go to Let's just get to five volts and that's in fact because that'll put us halfway between What we're gonna be looking for what we're gonna be looking for is around about half an amp So yeah, it's not to run about five volts Okay Here we go and we have Just about there. It's tracking up pretty much the same But I got them Which is lovely One is easy to do this ten-term price a bit sensitive in areas But it is probably one of the cheapest ones I could find put a couple of them that are really really cheap off eBay So I didn't expect them to be really good to be honest with you But they do the job just for these playing around and that makes some idea now What we're gonna do as well as now we're gonna go to ten volts Because this is how you can set up and you can start marking off if you wanted to on your current Whatever enclosure pull it into like it suggests in the instructions or the destructions as we like to call it sometimes But yeah, you can set up then to calibrate your one amp And this is exactly what we're doing here like this and that's what we've got at ten volts We've got one amp and our current limits kicked in now I just turn off But I don't even know it's that's a nice little red color nice little red and It's not too in your face like you can still read that I think it was up on her if it was up on your If it was up on your You know, let's say you're doing a video at night.  Unfortunately, what comes with these boards is that bright white LED? I Don't know what to say when it comes to these boards. It's just a bit terrible. Anyway, and now what we want to do as well It's now I've got this The voltage all the way down now He doesn't say we should do this with a load or not, but I think just for this I'm gonna take the load Out of the circuit So we don't have this load anymore I'm just looking down at these the voltage down here Then what you can do with this trim part down here is you can just calibrate your voltage and beautifully or You know get it to the best you can with them and the pot that you got So if I take this down like this one, I think I go there we go No Just a little bit back again Just turning this back and forward a little bit just trying to find that little sweet spot Very quite happily just six on the zero I think we're probably good there Just a little you go sit and play around there we go Now we're gonna plus look at this one But this is something you're gonna find, you know, you can't expect all these to be absolutely Absolutely spot on but it's gonna give you good enough Okay, it's gonna give you good enough and that's and it certainly can give me good enough So I'll do for me and then this is millivolts But if we put that We start turning this up again, and then we see how far we go All the full voltage. There's no load on this I'm just gonna twist that up a bit quicker just a bit more aggressively Just to get it running up there And this will do itself. You don't have to calibrate this. This is because I've got 24 volts coming in This is what I'm gonna get out once you take into account the losses of the circuit Because 24 volts to DC would be 36 volts And that's how it's supposed to work. This is how one of these is supposed to work and they work great I've had this one for years And it works great But now I'm gonna show you what happens With these other boards such as I may as well just leave it rolling while I swap this out, man So, first of all Just pop those in there Now I've got 12 volts and 12 volts on this so I've joined them together in series And that enables me to have 24 volts AC Okay, all right, so now what I'm gonna do is first of all we're gonna use this little Neatome, I'm gonna take these out of here because if you notice Just shift that up a little and I'll turn that off for a moment And I'm gonna pop these over here because this is where our output is And these little grips are quite happy to grip all of those And they're insulated away from each other which is quite nice And we're gonna look first of all at the What we're looking for is to bring our voltage to zero The radians there Okay, and again we're gonna be using this little This is from the 1010 pop for that So let's switch it on and see what we've got No surprises from last night, hopefully All right, well straight away we've got our LED coming on as you can see So, get that out of the way actually It's a bright white, lovely, that's what you want facing you Or you're trying to look at, yeah You display on there Okay, and then on here look We're gonna put our A voltage motor, can you see that? Okay, and then we're gonna use our twigler to adjust this Now, probably what I found is we can't really adjust it Mid-volt range Hear that clicking? Yep, as well at the end of the range So we're gonna slowly get out Because it is a bit of a sweet spot on this that you gotta find For it to start making adjustments But if I turn my voltage all the way to zero My current all the way to zero Even if I turn the current up It's still not turning out this It's still saying the current is being regulated Which is no good to us It's obviously no good But let's carry on going around with this And see if we can just get this To adjust it all At the middle of a minus Seven Point seven We're gonna see if this makes any difference I'm going slower and slower Because I do realise that, you know Like I said, there is a bit of a sweet spot on this And so you can have to just Slowly go through to see this start to fluctuate Oh, this fluctuates the right way I don't know, I didn't get a very good education so But you'll see a difference If this pot is making any difference We should see a difference here I'm afraid Let's just go back there a bit We did see a slight bit of difference going on Yeah, if we make that to go any lower I don't think we're going to be able to Because just because I don't think it's actually I think that could have just been I don't know what that was But I'll just keep twiddling this around Keep twiddling it around And nothing To be honest with you We've been around more than ten times now But it's not clicking I don't know, a little Let's get back up a little tiny bit Just fine there Trying to find a sweet spot like this You get a lot more area For trying to find that sweet spot A little place where you just bring it all down to zero It's full voltage for a deal for itself But look, this is doing nothing We've gone around this more than ten times And this pot isn't giving any indication But at the end That possibly faulty pot But look what I haven't done We've turned the voltage all the way up Now this is supposed to set itself With 24 volts going in To give you 31 volts basically coming out But that is the follow-up Can't turn it anymore 26.31 And if you think about 31 volts and 26 volts That's around about 5 volts difference Is that relevant? I don't know I don't know but it is that difference But it just means that we can't really do anything For current either because I can turn this current pot All the way up to the right And turn the voltage all the way up to the right And there's still no difference Now this is before, this is how I left The other board And this would be the other board And I'd just left it like that I'd just leave it and see what happens And what happened with that Let me turn the lights back on Is it... It did that But it did that It cooked it Cooked it straight across the op-amp Beautiful, huh? And that was sparking And all sorts of things Which is great for having these things It's very easy just to off that Of course to put it back on again But that's... That's the problem with these With this particular one this doesn't do anything We can try another one We can stick this one on as well Just to show you the difference I've actually changed out the op-amp The claim to be the real ones It's hard to tell My future will be buying from proper places Unfortunately I'm getting a bit... Before when I started buying stuff I didn't mind, it was cheap Cheap for it to come You know, you get a bag of 100 nanofarad Milo film capacitors For a dollar You know, basically nine to nine cents Post it I don't think we can post anything in this country To my neighbours I wouldn't be able to post to my neighbour For less than that price Of the components But so as you can see You can see what one That's supposed to work And does work And is in fact an original That they work But these ones, they don't work So buy at your own... You know, your own risk there But if I was you, I'd look out for these I wouldn't just trust the first image The one on Banggood Because, well, they've obviously got Another image of these types of boards And it's these ones that they send out to you Not these ones Okay guys, I'll Look at some more things for this Maybe in the next video


second method of kind of teasing these values apart if we don't like the jitter, we could also take the same code block and just add transparency. So what I'm going to do here is create a new header called transparency. I'm going to copy again my code block from above and we'll try this first with point just to see the effect kind of compared to our original version. And the argument that we're going to use inside the parentheses is alpha. So alpha controls the amount of transparency. It goes from a zero to one scale and we're going to set it to 0.5. Okay when you run this you can see we're still in gray scale so it might not be super visible but you can see that there are some darker points that represent essentially some kind of grouping some some stacking of values at that point whereas these lighter gray points are going to represent areas where there's lower density fewer points stacked one on top of the other. You could also add some color here tomato sorry this has to be uh designating colors you have to use quotation marks. So here I'm using tomato which is kind of this red shade. We could also change this to blue if we wanted to. You can kind of play with this to see what gives you the clearest effect to get that kind of color density difference between these points. You can use the same combination of arguments with the jitter function as well to kind of mix these two methods here. So now we have this kind of cloud effect um together with the transparency. All right so you can basically play with these to get the effect that you want. Again we can combine this with the uh these arguments here to control the amount of jitter. Typically when we're stringing together a lot of different options here there are some kind of best practices for formatting just hitting the enter key after each argument separates these undifferent lines and just kind of improves the readability. The final example that we're going to show here is using size basically manipulating the size of the points to show us how much uh bending or concentration of points there are around specific coordinates. Okay so to demonstrate this we're going to copy again the code block from above. We're going to change g on point on this and you'll see now that this function has created kind of this new dimension to the data. It's taking the number of points at each set of coordinates and changing the size of that point to represent the number of points that are at that location. So this is a good way again of seeing kind of the density the concentration of points at specific values. Okay we wanted to provide some further kind of nuance here for instance if we wanted to see um to distinguish points for different villages we could add an additional argument here to our aesthetics saying that we want to set our color by the village that these records belong to. So if you remember from our original data there's a village column and these records are represented um you know some of them are in this god village kerozo we have basically three different levels of values that the data can take. So if we do this we're going to get the same kind of effect with accounts but now we're distinguishing um records that come from different villages. So for instance this green point here we have something like uh it looks like three points for uh from god and we have one point from ruaka that are the same location but rather than just kind of bending them all together um there is some separation we can get a little bit more to do once there. And you can see that the further the more complex these graphs become um it becomes more important kind of the aesthetic choices that we make. So here we have a blue point kind of superimposed on a green point. This might not be ideal for kind of readability specifically when we start getting into some color blindness issues and that sort of thing. So you will just want to kind of play with this to make sure that that the graphs are readable that you're taking into consideration these kinds of visual differences that people have and just make sure to make good choices so that that data is interpretable.