Good morning, everyone. It feels great to be here. We are really excited to present our journey of how we build housing.com, the mobile version. OK. So I'm Rahul. I lead the front-end team at housing. As the name suggests, we are into home buying. And for most of our users, home buying is a once-in-a-lifetime event. And it's a long journey before they settle for their dream home. We have native apps to facilitate that experience with native performance, better re-engagement, and offline experience. But we also had a few challenges, like poor internet connections, mostly 2G and 3G, and low-end devices in terms of computation, memory, and storage. These kept our users from downloading our apps and thus hindered our business to reach their goals. We also had our mobile website, which looked something like this. The problem with this was it was a monolithic code base, having desktop and mobile tangled together. And the components were kind of bloated because of the e-files in JavaScript and the media queries in our CSS. That eventually affected our performance. So we thought about we have to cater the growing need of our mobile user base. And we chose to upgrade our mobile website to something that can compete with our native apps. The reason being simple, web has better discovery and a wider user base than any other platform. Also, the cost of bringing a user to our mobile web was 50 times cheaper for us than bringing the same user to our native apps. So it was the deal breaker. We started off building our mobile website. The first and the foremost thing that we had was to support all the major browsers that are out there that our users use on more than 2,000 different devices that they have. So this was our first aim. And then we thought once we have this part done, we'll upgrade that experience to compete with our native apps. So we built Housing Go. And we were happy with the kind of metrics that we saw. We were able to bring down our page load times by 30%. We were having 10% longer user sessions. And the bounce rate was cut down to 40%. On top of all this, the most important part was 38% more conversions on our mobile website. That really helped our business realize the goals much sooner and effectively than earlier. And yeah, I'd like to call up on stage Ritesh, who will be taking us through the journey of how we built this. Good morning. So I'm Ritesh. I'm a front-end developer at housing.com. So let's talk about how we actually built it. From the start, we were focusing on four key areas. The first one is that we wanted to deliver assets fast. Then we wanted to bring down the time to first meaningful paint. And also the first JS-enabled interaction time. And at the same time, we had to improve the experience of our returning users. So most of the other performance metrics actually depend on when is your asset delivered. So this is a waterfall of a traditional website. First, your whole HTML loads. And then other asset request goes. So you have to wait for whole HTML to load before making a request. So when you analyze your code, you'll find that there's a certain part of your code that needs no computation or no API request. So let's talk about HTML streaming. Now, this is how it looks like on client side. First, we send the initial chunk that only contains the code that needs no computation. You can see there's pre-connect, pre-load, and the critical inline CSS. Now, sending the pre-load, we actually start the request for critical JavaScript earlier. We'll talk about them. So now, this is the full HTML. After the server has made API requests and it has received all the responses, it sends all the HTML. Now, this has body, initial one didn't had, and this has all the content. Now, the size of full HTML is around 15 kb, but the first response that the server sent was around 4.2 kb, this is it. So pre-load. Most of the time, the developers already know that a particular route is going to need a few critical resources. You can load them in advance. And so by using HTML streaming and pre-loading combination, we were able to start the request for critical JS much earlier than other assets. So after we were done with asset delivery, we went ahead to improve our render time. And by render, I mean the first meaningful paint. Now, the difference between first paint and first meaningful paint. On the left side, you see that that's first paint. First paint is anything. When there's anything, any pixel available on your phone, most of the time, that's not relevant. And user feels like waiting. And when the relevant content is there, that's the first meaningful paint. Now, we wanted to zero down the difference between these two. So we experimented with server-side rendering. I am saying experimented because you should always measure before you implement. So this is a traditional app shell model on first load. Till 2.2 seconds, there's a white screen of death. You have nothing to see. Then there's a state where you have something, but it's not relevant to the user. He still has to wait. And around seven seconds, he sees the first meaningful content. Now, the region before 2.2 second and 7 second is what we call the loading screen of purgatory. So the user doesn't know what's going to happen. He may receive the content. He has to wait for a certain amount of time. And if there's any error, he will have to wait in that state forever. So we wanted to improve this. We wanted to remove this totally. So this is after SSI enabled. Now, when we implemented server-side rendering, the first meaningful paint happened at 2.3 seconds. And that was quite an improvement. And all these tests have been run with a web page test. It's written on the bottom. So there's also a bonus when we implement a server-side rendering that the basic meaningful content is available for everyone. I mean, as Raul said that we have users using more than 2,000 types of devices. And so there are a variety of users with different browsers. The versions may be older ones. So the basic content is rendered for all of them. So that's a bonus. So till now I've talked in bits and pieces about how we improved JS-enabled interaction. But the main thing that you need to do for improving JS-enabled interaction is that you need to ship less code, less JS. So less of the JS, faster will be the interaction time.  And this brings us to code splitting. We are using Webpack 2 for code splitting. And we do both JS and CSS sharding. So generally, the chunks that we make, we divide them into two categories. The first one of them is route-based chunks. Now, when a user lands to a particular route, first we make a call for the main JS file that you will require. And in parallel, we make a request for the corresponding CSS file. So when the CSS file has been loaded, we allow the navigation. And after his idle, we make a call for the next probable route that he might navigate to so that when the user navigates to that route, the transition is almost instant. So next, I come to the second category. That's intent-based chunks. Now, these are the chunks that are only required when the user does a particular kind of interaction, like scrolling or click, and doesn't involve any route change. Now, let's take an example. This is our listings page. Now, on top right, you can see a notify button. Now, by analytics data, we know that this is a kind of button that gets clicked once in a few sessions. And the corresponding view that it requires has, it's of 32 kb unzizip. So it makes no sense to load that with the main JS bundle because most of the times, it will go unused. So we require it only when the user has clicked on that particular button. So after doing all this, currently we are at a stage where our first meaningful paint happens at around 2.3 seconds. And the first JS-enabled interaction starts at around 4.2 seconds. Now, by JS-enabled interaction here, I don't mean the DOM content loaded. We have defined a custom metric. Like, we calculated this when the component actually mounts. Like, since we are using React, for us it is actually component-did-mount. So this is the time when the component-did-mount gets triggered. So I've talked about how we push critical resources using preload. We have improved render using SSR and inlining critical CSS. We are pre-caching assets using service workers, as Rahul will tell you.  So we are very much near to what the purple pattern promotes. And so till now what I have discussed has improved the experience of first-time users. Now, we also had to improve the experience of returning users. So I'll call back Rahul to tell you more about that. So as I told you, finding a dream home is a long journey. User comes online multiple times to make his searches, to compare the houses he's seeing, the property he's seeing. So it was very important for us to make a compelling returning user experience so that we make that journey as smooth as possible. We use service workers to pre-cache a few resources on install and act as a proxy for our subsequent network resources so that it can serve them from the cache directly when it's requested second time. By doing this, we have been able to bring down the first meaningful pain that happens for a first-time user at around 2.2 seconds to 700 milliseconds. And the first JS-enabled interaction from 4.2 seconds for a first-time user to 1.1 seconds. We also implemented add-to-home screen features to give users the access to instantly interact with our app directly from their home screens. And we implemented push notifications. I like to mention that the kind of conversion rates that we are having from push notifications are almost beating a few of the channels that we have. So that's one thing that's taking us closer to our apps. The offline navigation, this was important for us because whenever a user visits for the actual site visit, the properties are generally at the outskirts of cities where the network is very flanky or absolutely no network. So this experience helped them to actually revisit their session or re-look the properties they have already done on the mobile. We used credentials management API to keep our users almost logged in virtually almost every time so that their information is synced across devices very smoothly. So once you are done building the app, the main question that we had is, how do we maintain this? We have done a lot of things to maintain the first pain time, first JS-enabled interaction time. But as the product evolves with a lot of features, it's very difficult to keep in check these metrics. So we came up with our own system of continuous integration with Webpack and WebPace test. And we made it as easy as just putting a label on a PR in GitHub. So if you are done with your code and you raise a PR, you just need to put a label run test and we'll put out all the information that needs to track these metrics right on the GitHub PR. Like the chunk sizes, it helps a reviewer know that how this PR is changing or modifying the chunk sizes that we already serve. The few route-based statistics like the first pain when versus speed index of the few of the critical routes that we take care of. Also the network and the timeline view. This helps the reviewer get an essence of what resources are loading and how they are loaded. So I think this was very important to us to close the loop of the complete development from the development and maintenance. It's not always, we are yet to do a lot of things to make the app faster. And one of the thing that we are experimenting is moving from React to Preact. We have seen that in our initial prototypes, moving from React to Preact has brought down a difference of 120 to KB in our vendor bundle. And that's huge, like that's around 700 to 800 milliseconds of JS enable interaction time gain on the client side. We are also experimenting with AMP to let our users have almost instant experience when they come through Google results page. So thank you. Thank you all. Hello, over here. Hello. Jake, are you there? Yeah, Paul, I'm here. Okay. We were asked to do a quick handover so we've cut the bit where we walk on stage. That was housing.com. And here's Lyft. Yay! Well, good morning, everyone. I'm Malcolm Ong, product manager at Lyft. And here with me today is my colleague, Mohsen Azimi, lead engineer on our project. And we're gonna tell you a little bit about our journey of how we built our progressive web app at Lyft. So just show of hands, how many of you have taken the Lyft before? All right, there are a lot of you. Awesome. Well, for those of you unfamiliar, Lyft is the fastest growing on demand transportation service in the US. It actually came out of a hackathon project from our original product, Zimride. And so similarly, our ride.lyft project also came out of a company hackathon. And so certainly in the very beginning, when we came up with the idea, there was a lot of internal skepticism as to why we would build a web app at all. Could we, if we did, could we actually build a web app that would be a viable alternative to our native apps? And certainly this makes sense because historically, Lyft's been a native mobile first company, has invested a lot of time, resources, et cetera, on the native apps. And so we said, well, let's go ahead and take a stab at it and see what we come up with. And I think we're pretty happy with our work. This is a desktop view of the app that we built. And our hackathon project gathered enough internal excitement that we said, why don't we go out, go ahead, go out, try to productize this and see if our users would also be just as excited. And so some of the reasons why we built this, from our standpoint, a PWA could be a great supplement to native apps for various reasons. Number one, greater reach. So essentially allowing a lot of our users that are unsupported or on aged-out devices to use Lyft. Number two, reduced friction. So certainly pushing users through an app store funnel is very, very inefficient. And number three, faster uploads and experimentation. So let's talk through each of these. So greater reach. On the pie chart that you see on the right, approximately 8% of iOS users in the market and 3% of Android users will soon be unsupported as we slowly deprecate older OS versions, right? So our progressive web app allows us to support these users. Furthermore, 100% of Windows Mobile and 100% of Amazon Fire devices, for example, simply because we never had Amazon Fire app until our PWA. And we still don't yet have a native app in Windows Mobile either. So this allows us to support these users. And in addition to this, obviously it reduces a lot of operational costs, technical costs, resources, because it means less code and potentially less incidents or support tickets. Number two, reduced friction. So as we all know, sending users through an app store funnel is highly inefficient. There's high drop-offs, high cost per installs. And so the funnel that you see on the right there, we can potentially go from six steps, right, starting from web entry, all the way down through the app store, towards sign up and finally a first ride. So it's been said that every step of this funnel, you could essentially lose 20% of your users. And so what are the reasons for this? I mean, maybe it's because, I don't know, users don't like the permissions that you're asking about. Maybe it's because they don't have enough storage on their phones. They have all those Snapchat videos that they saved. So we can basically change this to the three-step process, if you will. So in other words, imagine the PWA can replace the white portion of that funnel. Another interesting thing is deep linking. So imagine we had a developer partner app like Google Maps, and Google Maps has integrated Lyft, and they wanna send users to a seamless experience from Google Maps to Lyft, right? Right now, if you don't have the app installed, it sends you to the app store. Very, very, not as seamless as it could be. So deep linking from developer partner apps straight into our progressive web app is a much more seamless experience to do that. And finally, faster deploys. So certainly deploying fixes, code, experiments on web takes hours, not weeks. There's no need for this app-approval process, if you will. And so running experiments faster, AB testing, and certainly our app is always up-to-date. Have to constantly update your app. And in terms of productivity and timeline, our team actually just started with just basically one engineer, Mohsen. And our alpha MVP that he built was built on top of an Angular stack, primarily because Lyft's historically been on Angular. And we were able to do that in roughly two months' time. And so we proved that our PWA had a lot of promise, right? We, of course, ate our own dog food, used a lot of our, leveraged our public API to hand a lot of server-side things, had a little bit of support from design and QA. But for the most part, this was pretty quick compared to developing an native app. And so once we quickly proved the potential of this, we got enough internal support to get more engineers on the team and worked on a new app, a beta version of this, from the ground up in React, and was able to do this in roughly one month's time. And so now I'd like to bring out Mohsen to talk a little bit more about the technical aspects of the app. Hello, everyone. I'm here to tell you a story, a story about a ride. Meet Valerie. She just saw DJ Khaled is giving undercover lift rides. So she wanna try, maybe, he's her driver. So she goes to lift.com. And what we have in lift.com is this big pink button that says request a ride. We don't force users to download the app. They can just request a ride right there in the app. This is really important because if we force them to download the app, they had to download almost 75 megabytes of data just to start. So this is where PWA wins. You might think, okay, if she downloads the iOS app, it's gonna be a better user experience. It's gonna load faster. But in fact, our PWA loads faster than iOS app. This is under LTE network with a good device. But with slower networks and slower devices, we get good results, acceptable results. So now that she's in our PWA, she needs to sign up. For sign up in lift, we ask for your phone number and a payment method. If you have your web payment set up, you don't need to put in your credit card. Just use Android payment API. So she can do that. With two tabs, she has an account and she can pay for her ride. When she requests a ride, oh, I forgot about this. I talked about how the PWA is a better user experience. And that means in any front, animations, anything is same as the native app. Okay, so now that she wants to take a ride, when she taps request ride, what we do is we register the service worker that listens to push notifications from our servers. So if her driver is coming in two minutes, she can put her phone in the pocket and wait for the driver to come in. When driver is here, we send this push notification that lets her know that driver is here. This push notification, do another thing. It has a payload that updates the ride information in our app. So that means if she taps on this push notification, we are gonna take her to our PWA without making any network request because push notification had all the data. When she's done with the ride, we also send the push notification. That push notification as well includes ride's information. So even if she's offline, she can open up our PWA and access this screen, which has all the information about the ride, who the driver was, how much it costs, and things like that. This is really cool. But it doesn't stop here. Thanks to Background Sync, she can submit her feedback while she's offline. When she does this, what we do in the service worker is we are making a post request, putting it in the cache, and then service worker is gonna wait for online event. When that happens, this post request is gonna be submitted. This is without her interaction. It's happening in background. I think this is really, really cool. So making this progressive web app was a really, really interesting journey for us. We are doing it for about two months. It's very early, but we learned so many lessons that I want to share a few of them with you. As other speakers here told you, less JavaScript is better. As much as we love to add new libraries and new dependencies to our code, we should always be consider about the amount of JavaScript we push to our users. This is really, really important for mobile users. Your regular MacBook Pro that you develop on is way more faster than the phone that your users are using. That's why in Lyft, we are using real devices for development and testing. We forbid ourselves from using our Macs or these powerful computers for development. It's not the most pleasant experience, but that's a user experience we are working on. Another thing that we did was minification. I'm sure all of you minify your JavaScript, but we did something new, which is thank to Angular team with their TypeScript to Closure Compiler annotated JavaScript project. With that, we were able to minify JavaScript even further. A method name in minified regular minification process will not change because JavaScript doesn't know where this method is being called, so it can't rename it all over the place. But with TypeScript and Closure Compiler, we were able to minify it even further. The other thing that we did with JavaScript was tree shaking, which is now much easier than before with Webpack and the new minifiers. Here's a quick look of our technology stack. You're not using a lot of dependencies, as I said. Just react a little bit of Webpack and things are working pretty great. Our bundle size is less than 40 kilobyte GZ. Thank you. We had challenges doing this work too. The biggest challenge was the other platform. But at the same time, all these PWA APIs are pretty, pretty new. And sometimes we saw MDN documents are out of date. There is not much stack overflow questions to look for. You just ask questions, you can get answers. So that is an interesting challenge to have. The other one is not in our control, so hopefully that's gonna be fixed next year. I have one little lesson we learned, and that is animation for opacity. If you use CSS animation for opacity, infinitely, it's gonna crash your browser. Don't do that. So now I'm gonna hand it over to Malcolm to talk about business impact of this PWA. Thank you, everyone. All right, thank you, Mohsen. And so putting this all together, what was our early business impact? The initial response from our alpha was certainly very, very positive. We exceeded our initial weekly rides, number of weekly rides goal by 5X. We were able to launch a app essentially a wrapper around our PWA into the Amazon Fire App Store very, very quickly. And if you're interested, there's a link up there to learn more. And finally, we estimate that we'll have up to a 50% improvement in force upgrade churn. So this is, again, folks that we eventually have to force upgrade due to having lower or older OSs. And so next steps, this is certainly still a very, very early beta. We're still iterating on it a lot. It will be buggy, but we encourage you to try it out. Number one, for next steps, we definitely like to prove and optimize our conversion funnels. Number two, experiment a lot. And number three, finally start adding a lot more features onto this so that we can actually reach feature parity with our native apps. And so I want to thank everyone here for listening. Some of our team members will be here at the conference later today to answer any questions you might have or just chat. And if you'd like to give it a try, just go to ride.lift.com. And in fact, we have a coupon code for you to use for 20% off your ride. All right, thanks, everyone. Thank you.


Hi, I'm Matthew coast head dating coach and founder at commitment connection comm and today We're gonna talk about how to get the guy that you want So if you're if you know a guy that you really want and you're struggling to figure out how to be more attractive to him Then this is what you need to do. So There's I read four things here for you to do and the first one is that you have to get his attention So if you don't have his attention He's not going to you're not gonna ever get him Because he has to that's the first step is you have to get attention, but I want to warn you about something here Don't think that attention is the same thing as attraction. So a lot of women. They're like, oh, you know guys go for that, you know Dancing around bimbo girl that you know is out at the club, you know But what they don't realize is that a lot of those You know types of women aren't women that actually get the guy that they're looking for And so if you want to get the guy don't confuse attention with attraction But the first step is getting attention and the second step is creating a sexual frame around the interaction So that he doesn't think that it's just a friendship type situation And so there's there's a lot of different ways that you can do that, you know, one of the best ways is to Just start looking at masculine behaviors or behaviors that he does that you like and just Sexualizing them, you know telling them that it's attractive, you know, tell them that that it's hot You know if he does something that you like go, oh, that was hot, you know or or compliment him You know in ways that show him that you're sexually interested in it, you know say things like You know your butt looks really good in those pants, you know Or something like that where you you are giving him a compliment, but you're doing it in a way that there's a sexual undertone to it That's pretty obvious So the next thing that you want to do is get him attracted to you emotionally You know, there are a lot of women out there They try to like convince a guy to want to be with them and that just never works, you know A guy has to feel attracted to you He can't be logically convinced to be attracted to you and and so the way that you Emotionally connect with him is by connecting with his heart and to connect with his heart You have to be in touch with your own emotions and you have to Express them to him in an attractive way and the best way to do that is to just You know express how you're feeling with no expectation, right? A lot of times women will They're trying to get some kind of reaction from a guy, right there They tell a guy how they feel with some kind of expectation that the guy will react in some certain way And that's incredibly unattractive. What's what is attractive is just expressing yourself just getting in touch with them You're emotions and just talking about how you feel, you know, and that's to a guy That is not drama and that is incredibly attractive. It's very feminine It's a world of mystery to a man and being, you know Having mystery can be incredibly attractive and so the last thing That you want to do is show him that you're in alignment with where he's going in his life, so A guy if you want to get a guy into a long-term Relationship he has to be able to see you as someone that he could be with in the far distant future If he looks at you and he doesn't think that you're somebody that he could be with and you know in the distant future he will He'll only want a casual or sexual relationship with you And that's where a lot of women get stuck and so you have to show him that You are a great match for him for the far distant future And that's another one of those things a lot of women, you know They get attention, but they ruin their possibilities of being in a long-term relationship because they sacrifice This alignment For the attention and you don't want to do that You want to show him that you're in alignment with him with his values with where he's going in his life So if you want more information on how to do that and you know how to attract a quality man into a committed lasting relationship Make sure you go to my website at commitment connection calm and take the quiz there I'm Matthew coast and I'll speak with you again soon


Hello and welcome. In the last lecture, we had introduced the concept of entry missions and had considered some aspects of the basic mechanism of entry or reentry missions. In this context, we had also mentioned that there are two possible broad categories of strategies which are commonly employed for entry missions. One with lift equal to zero called the ballistic entry and the other one with a lift such that the lift to drag ratio is within a specified limited range. In this lecture, we will now look at the first of these strategies that is the ballistic entry trajectories. So, let us begin. So, our discussion on ballistic entry trajectories is divided into two segments, the first of which refers to the steep ballistic entry while the second one refers to a shallow or orbital ballistic trajectory. So, let us first look at the basic idea of the steep ballistic trajectory as we have already seen. The ballistic entry assumes that there is no lift and broadly the motion is along a straight line. As we immediately note, such trajectories are governed primarily by drag under the assumption that both gravitational and centrifugal forces are negligible. So, in addition to the neglect of lift, we also neglect the centrifugal forces because the trajectory curvature is in zero. So, the radius of curvature is infinite and v square by r term goes to zero. And we also ignore gravitational acceleration as the drag is the primary force that is responsible for the trajectory parameters. In such a case, we get the following system of equations. We just equate the drag which is defined as rho naught sigma CdA into v square by 2 which is equal to mdv by dt directly. A simple differential equation which is non-linear as we have v square on the right hand side. Further, we also have an altitude term through the parameter sigma which represents the ratio of the density at an altitude h with respect to the sea level density rho naught. And is typically expressed as an exponentially decaying function with beta as the parameter. It should be mentioned here that 1 by beta is called the scale height commonly employed for density approximation while capturing the effect of atmosphere on the vehicles. Even below are some values of beta for various planets which have atmosphere. So, for example, Venus the value is 0.1606 for earth it is 0.1378 and for Mars it is 0.0361 that indicates also the kind of atmosphere which is present on these planets. With this in place it is not very difficult to solve the non-linear differential equation in a closed form and we can obtain the velocity solution as given below. So, we can write dv by dt in this form. So, we can write on the left hand side dv by v square in terms of the various constants such as drag coefficient the frontal area a w naught which is the weight of the vehicle. And before we write the final expression there is an important definition that I introduced called the ballistic coefficient written as bc which is the ratio of the weight w naught divided by cd into area. Please note that cd is the drag coefficient a is the area which are both constants for a given vehicle. Similarly, we assume that there is no change in the weight of the vehicle as it re-enters. So, it is a constant for a given vehicle configuration. We try to then solve this differential equation in terms of the ballistic coefficient and the entry angle phi and we can obtain a solution of velocity in terms of the velocity at the re-entry and the parameter b which combines the various quantities which are constants and the exponential function of the density. Let us now try to visualize these trajectories for different values of angles and the constant kd which is the ratio of 2b divided by rho naught and for an entry angle of minus 50 degree which means that at the time of entry the object makes an angle of minus 50 degree with the local horizon and has a velocity of 5 kilometers per second. Here we see the trajectories which are roughly from a height of 15 kilometers down to the surface of the earth and we note that for a major part of the trajectory it is nearly a straight line. In fact, for kd equal to 0 it is exactly a straight line and as we can see from the expression of kd which contains ballistic coefficient that would happen in the case of a large value of ballistic coefficient and a large value of ballistic coefficient as we have seen earlier is directly possible with a small value of drag coefficient or a large weight. So, which means that vehicles which either are heavy or have a small drag coefficient or a small frontal area will describe a straight line trajectory and the equations that we have used will be reasonably applicable to give us the velocity solution. Of course, we also see from this picture that as kd value increases that is the ballistic coefficient decreases which indirectly means that either weight decreases or the drag coefficient increases. There is a little bit of curving of the trajectory as we reach the lower part of atmosphere which is much denser and as it is much denser the effect of drag increases significantly indicating that some amount of curving of the trajectory is possible. It is to be noted here that this kind of entry trajectory or entry mechanism is commonly used for unmanned capsules which are designed as stable bluff bodies which offer maximum frontal area to wind and generally have no specific heat related requirements so that we can generate a large amount of drag and dissipate the energy quickly in a shorter duration during a shorter span of the trajectory. Of course, we find that the steep ballistic trajectory entry has a very small entry corridor which is typically what we call the feasible domain and obviously, generates a large amount of heat and even in the context of unmanned capsules can pose some design issues with regard to material, the strength, the integrity of the structure etc. Let us now turn our attention to another form of ballistic entry in which instead of using a very large negative angle for entry, a shallow angle for trajectory is employed and is typically also called shallow ballistic trajectory or orbital ballistic trajectory which means that the vehicle enters the earth's atmosphere on an orbit such that its velocity vector is really parallel to the local horizon with a very small angle with respect to the local horizon. In such cases, the entry is typically close to orbital velocities which we have seen to be can be of the order of 8000 to 11000 meters per second whereas in the steep ballistic trajectory we make the entry with a smaller velocity of the order of 4 to 5000 meters per second as we have seen in the example. We will note that such trajectories are governed by both drag and centrifugal forces and they need to be included in our model description. So, in this case, the model equations are that apart from the drag term which is seen as the steep ballistic trajectory, we include both the gravitational force G0 and the centrifugal force term which is significant due to large velocities and then of course, it is a two-dimensional motion instead of the motion being along a straight line. So, we have the normal equilibrium also Vd5 by dt and then we have the kinematic relation dh by dt as V sin phi. As phi in this case is very close to 0, we realize that cos phi is very close to 1 and the sin phi can be replaced with phi that makes the equations linear and to some extent, simplify our solution process. So, the moment we do that, we get dh by dt as V phi, dv by dt remains a nonlinear differential equation in V square. The normal equilibrium has Vd5 by dt and with that we get the following two differential equations, one for the altitude in terms of velocity and other one velocity in terms of the angle phi. While these equations are a little bit more complicated than the steep ballistic trajectory equations, it is still possible to carry out the solutions analytically by introducing certain change of variable through substitution. So, we replace X as minus ln of V bar where V bar we define as V by root of g0 by Re. Here, let me make a mention that this normalization of V with respect to a parameter called root of g0 Re enables the values of V to be in a reasonable range between let us say 0 and 1 because root of g0 Re is nothing but the circular orbital velocity at a specific altitude that is surface of the earth. Then we also introduce another parameter y in terms of the drag coefficient, the frontal area and the other parameters of the problem. We can do a bit of algebraic manipulations after which the resultant equation of motion is obtained as follows. This is now a second order differential equation in y with respect to modified variable X and is in terms of an exponential function of X and Y and as this is second order differential equation it will have two initial conditions or boundary values y0 is 0 and y dot 0 is 0. It is possible to solve this equation but it requires a little bit of interpretation. The above equation is found to be singular for y equal to 0. So, there are techniques in calculus which aim to solve singular differential equation through what is called a perturbation technique wherein we expand the solution in the form of a series around that singular point and then generate the solution in the form of a power series. In the present case if we do this expansion it can be shown that the resultant modified differential equation through this perturbation expansion can be given by d square y by dx square equal to 2x by y and this differential equation is not very difficult to solve in the closed form analytically for which we get a solution for y in the closed form. Here I have shown only the first three terms of this series but depending upon the requirement of a specific context one could include as many number of terms in this series as are required to achieve the desired accuracy. So, what are the broad features of such a ballistic reentry? The shallow ballistic reentry is commonly employed for manned emissions as against the unmanned emissions which use steam ballistic entry. The idea is to limit the overall deceleration by limiting the drag that is generated in the descent phase. This is primarily because a large drag acting on the vehicle will result in very large amount of deceleration which may exceed the physiological limits of the humans which are part of the vehicle. The above solution that we have seen was first used when Yuri Gagarin went into the orbit and returned to earth in his space capsule and the same case capsule was brought back through a shallow ballistic reentry so that the deceleration could be kept to manageable limits. Of course, this still has issues in terms of not having any explicit control over the acceleration and most of the time the acceleration is through designing of the configuration that fixes the value of your drag coefficient, the frontal area and other quantities. In recent times, this option has been replaced with a more flexible and viable option of lifting reentry in which the lift is used to manage the deceleration and also is able to manage the heat load which is not possible during the shallow ballistic trajectory. If you want to do the heat management in the shallow ballistic trajectory, then the amount of time that it would require to remain in the orbit before it comes back to earth is going to be very large. The lifting reentry provides the additional flexibility of maintaining the deceleration and the heat load while performing entry for manned missions. So, to summarize the ballistic entry is a simple concept that aims to achieve the desired trajectory through control of entry flight path angle. In this case, we note that the amount of deceleration is limited as well as the corridor of entry is also quite small. Of course, we have seen that by making the entry angle shallow, it is possible to manage the heat load and the deceleration, but then it is possible that the time spent during the flight is likely to be significantly large. Hi, so in this lecture we have seen some features of the ballistic entry trajectory through two scenarios, one with a steep entry angle and the other with a shallow entry angle both having their own benefits as well as limitations. We have also established that by using lift it is possible for us to manage both deceleration and the heat load in a more elegant manner and this is what we will explore in the next lecture. So, bye, see you in the next lecture and thank you.


Hey, yo, what's up internet ourself mark for sugar here doing a Doing my last gaming stream for November because today is November 30 Today we are wait. Let me just fix the camera. There we go. All right, so today. We're just doing some zero hour Honestly, I tried to get I honestly I tried to get into battlefield 2042 It's not really doing it for me right now. I Noticed a lot of bugs in addition to my Current problems with it, which I made a video of it's the latest video on hardware sugar and Zero hour costing only 350 pesos You know, I mean, it's a steal. This game is great. Like it's a fantastic game my only problem is that Like the mainstream gaming media has not covered this game very much like if you type in zero hour review You won't get IG IGN and you won't get games, but They haven't actually reviewed this game. It came out like a year and a half ago already and It really pisses me off that, you know, these me the mainstream media don't want to review this game Like not even, you know attempt to review it and give it maybe a bad score, but they didn't even attempt to I mean zero hour isn't Perfect like like there are there are a number of bugs in this game And as you can see it takes a while to get into a into a good match not not super long But rather significant time compared to like let's say like 2042, which is very popular and stuff like shit You know, I just moved I just moved servers and apparently US East is completely empty Usually I usually I find a game to mine in the first go. I don't know. I guess everyone's asleep Then I think I'm better off with just going on the Asian server But yeah, I'm really disappointed that people aren't picking up this game and one of the reasons why I'm playing it It's also to support the It's also to support the The Out-of-time the programmers I Tyron, Obasa settings Settings well, I have I have zero R set to ultra anything planning to find for 2042 I had it set to Normal normal graphics if you're asking about that Mm-hmm.   So I'm gonna be running with iron sights Locate and diffuse the bomb All right, let's go with the shield guy. Okay, it's got your door. Okay Door jam is clear.  They went without me fuckers.  I'm gonna make it Oh That was tight 2042 a GPU. Yeah, a RTX 2080 ti from gigabyte Still not doing very well with even with oh, I got three kills on that match. Not bad. Not bad I was when iron sights were crying out loud Uh, I'm in I'm gonna guard this of what GP like I've seen people with an RTX 30 70 and they were still getting frame rates of like 60 60 65 I don't think there's anything wrong with my hardware and I don't think there's anything wrong with anyone using a 30 70 or 30 80 The game is just not optimized. Well So, I guess people who are interested in buying the game might really want to consider waiting it out Let me get to I need to get to pick my shoot again Okay All right Where do I want to hang out? Uh, you know what I'm gonna I'm gonna camp here Can I see Can I see outside?  Do you see that?  What's that? Probably not the best graphics in a game Someone on the second floor care So this guy at the sea My chyndra has an idea here. He can see through his damn window. I couldn't see through mine This is curious if anyone's if anyone in the chat has actually played this game before or seen it It's like rainbow six siege but What rainbow six siege was supposed to be Not this hero base kind of rainbow six, which we have now thank you Like if you watch the trailer of rainbow six siege the original trailer It was supposed to be Like this like slow based tactical swat team kind of style of gameplay Then I then somewhere down the line they decided. Oh, hey, let's just give every character like a unique ability And then make it slow paced also, but with that new, you know unique ability thing Apparently being kitty for me and also it's unrealistic Like it's not it's not for every I mean like there are some people who who Singifier man, you gotta sit Nice. Gosh. I just got here keeps giving me servers that are full Oh All right, I finished. Let me see. Okay. Okay. This one hasn't started yet. So let's go here Uh, hey napster. Hey revenjan revenjan.  Oh, yeah pub g Blah. Well, I promise piece of hard drive here Uh, also anion. I'm scarred by my last pub g game. It was two months ago No, I was like No, it was anion. It was one-on-one And Like it was down to one-on-one because I like playing one-on-one.   He didn't even know he didn't even he also didn't know that he was right up my ass So I had to turn pa and so I got some few shots on him But well, he got he was lucky apparently he was already facing me to begin with so I was like So, yeah, I mean that was a great match though sign. I didn't win that one. That's set up decorations Uh, those are those are that's that's a that's good times. That's good times I used to set up decorations also with the family when you know, my never-own was around here right now because uh, her parents are abroad uh See Anton moved out of the house So I'm like Hmm No, I'm good. I don't want I don't need to like set up decorations right now What what I like doing however is I like checking out other people's decorations Like I like driving around like the city and then checking out everyone else's decorations Okay, it's like they set it up for me. You know what I mean?  Where is uh bomb site bomb site bomb site is upstairs I got 12 seconds. All right, let's go up to bomb site one more floor up Yep, one more floor Gotta hate that radio All right, let's see if this is a good spot. Hey, bry, what's up? You have bailey with you Panamon, right? Hi, Rodel. What's up? Uh, this game is called zero hour.  I gotta carry the team, man. I got to carry the team Oh, no, I heard a repel someone's repelling Shit god.   I don't know how they're gonna do that What I'm bailey bray bailey Bagel Bagel my dog. Yeah. Yeah bagels. Actually, uh bagels on the is on the cat. It's on my bed right now. There she is Yeah, that's her ear Yeah, I have bagel of course have bagel baby. He's come on. You can do it. You can do it or child. Oh Damn, just rush the in okay. We got this. We got this. We got this Okay Okay. Okay. Okay. They got like a clan thing going. All right. All right. All right. You can do that. Shit I'm just gonna I'm gonna double grenade it guys. I'm gonna Double grenade it All right, let's go. Let's go four on four. There's it's and it's embarrassing if we lose this Uh, so yeah, I'll I'll I'll even I'll even help coordinate with the team Okay, I don't know where he repelled. I don't know where he shot me from Problem also is you need to you really need to know the map that I gave. Let's see if we'll get lucky here Oh, I'm gonna hide here Let's check the cameras I hear footsteps Oh repel Someone's repelling dude Okay, I I'm behind that door right now next to the next to the breaker Should be lost one. Okay. I'm moving up Or the rest cross fire. Yeah, we could have hit each other Problem is I have an uzi. Yeah, it's not good for me. Middle range I should be with the bomb. I think I hear something on the second floor my axis, budito Voila. He's taking his time. Oh, come on. I unloaded like a whole clip He's coming. He's just directly outside. Let's hope for the chat Yeah, Rodel it's it's it's that type of game in fact, yeah, it's actually scarier when they They turn off the lights and then you only have you don't have a flashlight Like if you forget to equip the flashlight because you need to manually equip the flashlight.   You open the door.   Come on. Just spray dude. Just spray. Oh, man We had that game. What is this? We have don't have any wins Why am I also given just this gun? I don't want to use the uzi right now compensator Yeah, I'm gonna be like openly saying get get this game so that there are more players. It's like 350 bucks and uh It's it's amazing value. I I've clocked it maybe 28 hours on this game. It's a unhealthy addiction And usually actually the game people the people who play this game, they're very and they're very vocal And they're always like reporting stuff But usually when you play the asian servers, they're not very they're not very noisy I got double grenade next time.  I didn't know 4k takes up a lot of space I only found out the hard way We're still trying to figure out. How do we store all this like do we need all this before because content ATP without a problem b-roll very important Oh, man, he must have sniped me from outside. Oh, man. See that's what I get That's what I get Good. I think that was like one shot Actually this, you know, we're not doing anything We're not doing anything wrong. Okay there. We are hanging out next to the bomb site We have good positions.  What's up? I haven't seen you in a while. I keep thinking that I've seen you But in there by your name. So it can't be you Uh, actually every job we actually invested already in a cloud based server called frame.io. Very good It's just that even with frame.io made up of didn't come here Uh, and I actually bought that hard drive now precisely for Recording videos like recording game videos. That's one thing and then two is uh, all the b-roll footage Actually, I have no problem with like hard drive over ssd because I If you're editing videos like even 4k footage, what's he do?  He missed it. Oh Oh dog. He's like, come on. Come on. Come on. Rip. Aim graphic Rip aim. Okay, you know, I take it back. Yeah, we're doing something wrong. I mean, look at that. Look at that aim Come on. Come on. Come on. Okay It's embarrassing God, it's not like exactly we're even trying to hit him Gonna go for the lights very quack. Maybe they don't speak english. Oh, no Hmm, what's the power? I forget now how to get to the power and you need to go to You need to go to the garage I'm gonna go for the lights. Gonna go on the ground There might be a dude here. Oh, hey, galing. Yeah, galing. That was All right, man getting that was bad This uh, this is a bulletproof bulletproof glass. That's why oh, there's two of them. Oh Oh, man, we're just getting served.  It's back to dolef again I don't have so tired of watching dolef play.  Oh wait, actually there's hope I don't think we'll ask him All right, there was the hope there was the hope that they were all downstairs All right I forgive dolef for that attempt. Oh he quit. All right. Okay, fine. You know what?  I'm just gonna I'm gonna go up All right tyron what I stream starcraft 2 Bannafield 2042 modern warfare zero hour this game and I was supposed to get into warcraft 3 again, but uh Haven't started on that yet And I mean I was supposed to you know, I bought escape from tarkov. That was my mistake This game is like escape from tarkov.  That's spawn camping I'm in a report. How do you report? This is the first time not in All right, these guys are cheating. All right I don't know man. I you know, that's that's bow. You can't spawn camp. I don't even know how they got there I love cool It the game restricts you from going out to a certain area where you can spawn shoot Hey, what are you what are you guys talking about Reverend John?  Wait, let me see. I can't. Oh, I can scroll up Uh, what are you doing? This is just a massacre. Yeah, it was a massacre Even the consoles are super overpriced ps5 starts at what 30 ps5 starts at 35,000 You know what I'm not buying console anymore because I bought the ps4 And then after that the only person to use it was Anton like he just took it Like it's the it's in his house right now and should be told them and I also didn't have the urge to play it like I think I just really outgrew console games after The game cube. Yeah, didn't enter the game cube and journal because there was rogue squadron 2 and then there was Mario I mean there I mean I also had a wee but even with the wee I slowed down playing console games Not saying it's bad In fact, console games have the benefit of being more accessible to the mass because You know, it's it's much more. It's simpler to play a console than to play pc because you know console at least is assembled now It has all it has, you know great graphics It's touch. It's it's just, you know, you're just good to go Uh, but then like if you already have like an expensive gaming computer And then the games that I want to play on console are also on the pc And I don't have an incentive to I don't have an incentive at all to play to get a console When you have 2080 I we have no business messing with the console actually I I realized that There's something wrong with this zero hour game Side that or there's something wrong with my video card or motherboard because I when I'm playing zero hour and I'm just in the menu screen like Baug n' load the menu screen Sobrang ingay ng CPU cooler ko like it's like Like right like like when I was rewatching the stream from several days ago You could literally hear the fans of my aio just you know You know going crazy. So I'm like, I'm not even like right now. It's still it's still spinning hard by them See I'm here Right now. Well, uh But every now and then it like it it spins up and I think I think the microphone picks it up when you hear of That's the aio. So So actually it's uh fighting windows xp The main is this console so like jpews easily gone and being sold for more than uh, Yo, bry PS5 starts at 40k at least and people sell bundled shit for even more scalpers to increase selling PS5 Grab it Grabbing ps5. Um, yeah ksir ksir Uncapped well it is it's an uncapped fps, but this game isn't extreme. Isn't you know graphics intensive? I mean just look at it, right? So I don't know. I think it might be something wrong with The optimization for zero hour because I don't get this problem with modern warfare or 2042 Okay, maybe I was unlucky with that last game I'm gonna go m4 What's this? Oh, I've never used this hollow something something before Let's go. Let's do this Basement You know This map it's really hard to find like I've lost games or I'm just going around. I don't know how to get there Okay, I guess I'm gonna go here Okay, I saw the map I think he just changed I think he was upstairs Hey, okay, though By the way, I made a mistake there.   Oh Okay, that was inexcusable like the other guy was so embarrassed that my teammate left Okay, let's try that again without without with less stupidity I don't know. I think we need to find a way to turn off the lights Uh reminds me of money heist lands. Yeah, it's uh, it's the starter It's uh, it's what it's what it's what everyone sees when then you start off the game Oh, yeah, the level so he's on like a third floor. That's where the hostage is. So I'm on the third floor Hmm see gothica And then after you can like you can like do planning stuff flowing in 10 seconds, right? All right, let's just let's just go with a teammate but same time Case again, maybe I'll go I'll go here.  I thought that was I thought that was a head.  You can't blame me for that. Come on Yeah, yeah, that's uh, that's the appeal of this game. You can really simulate now Actually, if you go on youtube, there are lots of people who are who are like x navy c like they're retired And then they're playing it with their with their counterparts from the sas from the united kingdom.  Forgot the pic battery low.    I know he's here in the wall So we're gonna head on the left side. He's here by the wall Oh got him. I got his feet If we can spin over to the other side, it's a bugging. You have to switch.  Damn Oh, Sennheiser, what are we talking about? Oh, yeah, Sennheiser is the best brand for um for Let me see if I can maximize the Ah the chat though. Hi, take a look. Oh, no, I moved the chat away Hey All right, I can only see the last four messages in the chat guys Sorry This back. Okay. No, I got it. Okay. And kaya kaya. The coins of wireless headphones. Yes Sites flashlight All right All right.  Oh, okay. There we go. El chapaka The chapaka. I don't hear any. I think they're coming to come off from the stairs. I don't hear anything I think dude Did the shot? Oh motherfucker. Yeah. Yeah, you never blame.  Okay. I think I understand how they How they play Let's see if we can catch up Kind of dark man in this room Wait a minute. Yeah, okay camp here Hostiles are moving in. There's no way they're gonna come on this floor, right? I can just Then if I see them pick camera.  Okay, everyone is at the first floor Everyone's at the first one. I saw all five of them there. Okay. I got I think I think I got three I think I got three The problem is I only I only know my kills if I kill them on the next match You say, well, it's like realistic. You don't know if you actually hit them in real life So the score only any refreshes In the next match. So last the past two matches I have total of two kills. So if I really got three Uh, that'll be good. It'll be game five.  Oh, here we go. Here we go See el chibaca He's got good eyesight on the Bomb so if they try to diffuse he's just gonna he's gonna shoot them hard and you can hear the diffusing but the problem is I don't know if he However, he's using a flashlight right now. So they they know They know where he is I think I think there's It's like they're right there, dude. It's like they're everywhere They've got good positions here. They've got good positions Especially si poria Yeah, it turned off their flashlights So Oh flashbang grenades Grenade. Ah flashbang. Okay. No one affected. No one Good I really want to see if I got the three if I got three kills that would be like five in the next match Uh, you kill count dunce arrow. So the second from the left A second from the yeah second 10th game 10th game And the cool thing is you don't know who's dead unless you call it in and you need to press f on the body So if you could look at the upper corner My skull is there because my team knows I'm dead But then definitely I killed one or two of them and then those guys don't have a skull because I didn't I wasn't alive enough to report it in So, uh, you know, if you report it, you also reward your team with intel on how many team on how many bad guys are left If I'm lucky, I think I might have killed the this, uh Chinese Japanese character guy. He had seven kills And he seems to be the best player. Oh Come on. Oh And at the thing is you also don't know if that grenade throw hit anyone Because there's no like tick tick, you know in the second battlefield or in call of duty, which I like. Oh, there That's a laser sight Good. That's a good teamwork. Good teamwork. Everyone just died Hey, I hope you did. I hope he doesn't like move around. Okay.  There's so many pala.  I killed two Woof. Oh, it was great. I got that guy killed three in one go.  However, I know I'm behind them The moment I press T though, you'll see where I am Okay, I can't tell ah this one floor above me. Okay This one floor above me I got hungry got hungry there. I got hungry. I was like Come behind them. But yeah, no problem. Let me turn off the lights.  I know how many people we got we got two people. Oh One two one two Oh porious dead. Okay. I don't know looks like gg guys looks like gg This is the this is one of the relatively okay spots To be behind the hostage mismo Now you're in a problem.   I take it behind. Oh, there we go. Oh, there he is. There he is. Oh, man.  Like Mark Lewis, I don't know why But windows xp impral in here. Oh my god I think he's over there He's everywhere that footsteps. The thing is I think Oh man Just shot him in the face All right. All right. That wasn't bad. At least I at least I got those four kills. All right And you know the thing about you know zero hour is it highlights Good gameplay like we have like a 128 player battlefield 2042 Because of the the mindset of the more people who can play and the bigger the maps means The more fun people get out of it. I do not agree. This is a five on five match and the The fun is derived from The intimacy. Okay, cqc.  You feel bad because it takes so long to To onion to because there's no respawn until the until the match is over and people read People think before they do anything which think about is really like what life is all about. It's all about Thinking about your decisions before committing to a very dangerous tactic or more or thing I mean Unlike you know, like unlike these respawn games You just go in It didn't work out. Okay, so I'll try again. You don't feel loss And the fact that I this game which only has 10 people as opposed to 128 players Can create that sensation of loss Makes this a more gratifying experience, which is all about what gaming is about providing memorable experiences Windows XP will always live in our hearts Man, there was a time, you know, Windows XP when I think Windows XP I always think about one thing Panang Windows XP was the first step to a minimalist desktop Like even the way they they position things like the the lines were thinner very clean clean cut But every time I think of Windows XP, I think about that wallpaper. I think they call the wallpaper bliss Uh, and then actually there was like a controversy about that wallpaper recently like maybe like two years ago because apparently The photographers went to the exact spot where they took that wallpaper shot Of that uh, It's no longer green Yeah, it's uh, it truly is a critical flicking exercise And it involves you to be more sociable. That's a big problem by alpha 2042. There's no talking There's no voice chat And there's no all chat so you can't torment the other team And there's also no and then no one no one squad chats So it's it's not for a game that has so many players in it. You can't coordinate with any of them I'd rather court. I'd if I could Panang coordinate like a cool um A cool SWAT team in real life Nagano, too I mean okay, I mean three players or five players Panang we grew up with this idea that the more the barrier or more is always better But really it's not uh, and you know, I thank EA and battlefield for Making the mistakes they do because thanks to their mistakes I am now playing a different kind of a shooter genre, which I never thought I would care about Because I really played battlefield 1942 obsessively There was a time in high school to the gun on weekends. I was just 1942 a Like I got all the expansions. I got battlefield 1942 road to Rome secret operations and lights man, it was uh Day in and day out. I'd play at wake up in the morning Commandier Anton, so you call it computer because we only had one computer back then and then Just keep going 1942 That was only a that was only what maximum 64 players 32 versus 32 friends to really in our hearts man All right, all right, all right, let's go. Let's go. Let's go three on four guy at all Go fortify the area and what happens if I'm Here then I just sort of pop out like that. All right, let's see if um, this is a good hiding spout guys. What do you think? If I see Something moving there. I'm just gonna Shoot. Oh, man, we're wasting them dude What's a leaf doing in there?  You're gonna get shot. You can blow yourself up or He's here guys. Oh come on Oh, that's good. I don't understand how I could have lost that Uh, wait, bryce, who's this? Who's that? Who is this? We're talking about uh, my teammate who was just like talking. Yeah, that's my that was my teammate earlier talking I don't know what he was talking about. He was like, uh, I don't know and Smith and clap song Ah, yeah, uh teammate co canina like you can really like voice chat that hero I could press the Nice I can press the record button like this nice Actually, it's it's very intuitive. I like how I like where they put the default option for For voice chat. It's really smart. It's uh here.  See right left click shot Middle click radio It's very intuitive. You like all on one hand where I'm very impressive to I don't know why I don't know. Does everyone do it like this? I say it's smart. Is this smart?   You got to come to me, man. You got to come to me And I know you're out of grenades. I just need him to poke his head out. Here he goes. Here he goes Here he goes he's He's gonna be looking Oh, come on. I don't know.  Uh, maybe it's my ping. I have 215 ping. Come on. Come on, right?  Come on. I don't know. How could you have done? How could you have killed me? Anyway, I'm for sure I got one kill canina, right? I'll see later. I got one kill The glass is really built different here. Yeah Um, actually the confusing thing about the glass here is like that one is breakable But then it's like it's like you have these real these grills A philippine style. You have these grills which make it really difficult for you to tell if there's you know Someone there. It's not a one-sided map design Then I felt you have like glass that's bulletproof. Which they made sure that you knew it was bulletproof if they have these round circles Oh nice good shot Oh, I got I got two kills. Oh and like upgrade. I got three kills and like upgrade.  We're this is close quarters. I will just use An mp5. That's what they do in cs Oh, by the way, if you can hear the That's my that's my aio. I have no idea I don't know if I was able to switch night vision. All right, there we go. Okay second floor so He wants to turn off the lights I will Here because I don't know why but I always get unlucky trying to turn off the lights and I don't even know if I have night vision I do have night vision.  This is a good spot though. Come on. Come on. Show yourself show yourself, buddy Okay, I didn't know where I was shooting. Damn sighing in There's one guy there There's one guy there with the bomb man. If they just throw a grenade ox. Nah, dude ox. Nah, just throw a grenade Right side right side far right Okay, we have three minutes Thing is I don't even know if There might be another person because I indicated in Do it nice. That was nice. How many kills I get Okay, I just got one kill on that one. All right. All right.   This is um zero hour But it's much More realistic version of rainbow six siege. So everyone has the same Items everyone has the same abilities Uh, well, I'm special hero hero.  If like Okay, I'm with uh, what's this guy's name? I'm with LG Got LG's back LG's back is good support LG The same concept of rainbow six siege also applies here in that terrorist sometimes they're roamers And then they just sort of like come out from behind you. I forget third floor Oh, that was close dude. That was close. He was just hiding behind there.    I'd love to have more players in this game.  Come on.  Oh man He has never night visioning You're there. Yes, it's just uh, this is a problem. It's like a death. This is a death uh death alley Hi, good evening jv tech Some people just do it. That's a common problem. Oh man.  Like sometimes they release games and it's beta for like Like three years, it's beta right mercy at Son of a bomb site Bomb site, where's the bomb site?  Take your time Flashlights are really Disturbing me like any moment. I feel like they're just gonna come in through here This is a pretty tense match Gosh guys, man I'm gonna start blinking soon You come off Brian behind me. All right, Brian. It's just one more person Repelling repelling second floor left side jj deep to your left.  My camera froze.  Oh, sorry guys my My my cell phone died. Sorry. I had my our fuji film because I is at the shop right now for a film I was so in I was so engrossed with the game that I I couldn't check the stream Uh, but thanks for thanks for pointing that out So actually and uh, oh no, well, I don't phone image. I'll put a name camera So I think that's that's all for tonight guys besides that tomorrow is a work day Uh, I look kind of silly just staring at the screen like that. Thanks for calling it out, Brian Can you buy in 2042 Say in 2042 Uh, maybe maybe maybe 2042 is like that because 899 pesos for 400 for the world war two game you can let loose. Oh, that's good. Ah 900 Oh man 900 still still at 900 to the 350 I don't know. I'm still pretty happy with the 350 game. All right guys. Good night.  I just never got around to it and uh, thanks Uh cyberpunk gg. I'm not going to not gonna buy cyberpunks and don't bought cyberpunk Uh, thank christian espinosa. Uh, thanks for thanks for joining in the stream and have a good evening as well


Mike Pagliarullo spent his first five-and-a-half major league seasons in pinstripes, serving as the Yankees' third baseman in the mid- and late-1980s. He signed with the Twins as a free agent in 1991. And that year, he won the World Series. Now, fresh off his induction into the New York State Baseball Hall of Fame, we welcome him in now. And, Mike, first question. Please describe what being a forever member, rather now, of the New York State Baseball Hall of Fame means for you. Well, I'll tell you, I was extremely honored. I was flattered and grateful. I mean, there were so many people that I was part of in my career. And then being inducted with Tino Martinez and Lupinella was just a super thrill for me. It was, you know, something that I'll never forget. It was, you know, and I had the whole family was there, so it was great. It was just a special, special day. And, you know, it's a great, it's a great organization. And, you know, I heard a couple of years ago it was, you know, Ron Givry was there and had traveled out to see Gator and also Billy Martin, Mickey Mantle. So it's a great thrill and certainly something I'll never forget. And like I said, I was just honored and flattered and I was so excited. It was a great night. Certainly well deserved. Your speech was tremendous. You were drafted by the Yankees in the sixth round 1981, called up in 84. Of course, your debut must have been special. What other memories stand out for you while you were in a Yankees uniform? Tell us about a couple of them. Well, there's really so many.  But honestly, the Yankees had so many professionals in the organization. We had the greatest owner in baseball. And every year the team was trying to win. And so it was rebuilding at the time, but it was a great situation for me to be in. Although following Nettles wasn't the easiest thing in the world. You know, he was awesome. He was a great man and was great to me. He could have made a lot more difficult. But being in pinstripes, there was so many times it was tremendous. I guess one situation that comes to mind is when we were fighting for first place, and it was late in September, and we were playing Toronto. And my gosh, Gator was starting his one game. And I think we were just one or two games behind. Gator was starting his one game. And, you know, the first hitter got up and he struck them out. Struck out the next two guys. And the stadium was packed. First time I had been in the packed Yankee Stadium. And then the next inning, he goes out there and strikes out the next three. Well, I'll tell you, I was running off the field. I felt like I was carried off the field. It was just a dead-out sprint right until the dugout. It was so exciting. I got goosebumps running on and off the field. It was, you know, things like that that just popped in your head now and then. And one of the greatest things about playing for the Yankees is just a thrill. And, you know, I tried to play as best I can. And I was very proud to play for New York. And I know when I saw you on Sunday, you were in the midst of celebrating the 30-year anniversary of the 1991 Twins World Series championship. That must have been fun. Yeah, that was great. It was a special group of guys that, you know, it was interesting. 1991, you know, we came in last place the year before, and I didn't realize that. And also Atlanta had come in last place the year before. It was a great thing for baseball. But not only that, you know, that team, I think we proved everyone that you don't have to have the most talent to win. Best teams win. And we definitely had the best team. It was a group of guys that get together very unselfish play and had a lot of fun, but played the game every day.  And we, of course, we had great coaches too and a super manager. That manager, I kind of likened to Billy and Lou, you know, three of the greatest managers ever. And I was fortunate to play for him and learned a lot from him. And our staff helped with the whole team. Everyone pitched in all the time. It was a very, very fun year. But once a Yankee forever, a Yankee, correct? Absolutely. Thank you. You know, I go around it, no matter where my World Series ring, but I'm the Yankee guy, no matter where I go. Fantastic. That's what she said. Mike, thank you so much. Always great to see you and congratulations. All the best. Thanks very much. Thanks, Nancy.