what is hardest substance known to mankind
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- Diamond use to be the hardest known natural substance now it is the mineral lonsdaleite at 58% stronger then diamond is the first the second hardest is wurtzite boron nitrid…e at 18% stronger then diamonds they are both extreamly rare natural minerals sources http://www.newscientist.com/article/dn16610-diamond-no-longer-natures- ...
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Mohs scale of mineral hardness As the hardest known naturally occurring substance when the scale was designed, diamonds are at the top of the scale. The hardness of a material is measured against the scale by finding the hardest material that the given material can scratch, and/or the softest material that can scratch the given material.
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Carbon: the essentials GENERAL INFO: Carbon is found free in nature in three allotropic forms; amorphous, graphite and diamond. A fourth form known as white carbon is now thought to exist. Graphite is one of the softest known materials, and diamond is one of the hardest.ENERAL INFO: Carbon is found free in nature in three allotropic forms; amorphous, graphite and diamond. A fourth form known as white carbon is now thought to exist. Graphite is one of the softest known materials, and diamond is one of the hardest.
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- Sugar is the hardest substance for the body to digest. It can take from anywhere between 2-5 years for the body to fully digest. Be sure to drink lots of water with your sugar … because it can speed up the digestion and guarantee it to digest in 2 years :). 5 people found this useful.
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- What is the most strongest material that can take impact? If diamond is the world's hardest material, which is the world's softest material? What's the strongest material known to mankind? What material sticks to other materials?
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The World's Strongest Stuff The web of a Darwin's bark spider, seen here, is one of the toughest biological materials yet discovered. Enlarge Photo credit: © Lalueza-Fox, C.; Agnarsson, I.; Kuntner, M.; Blackledge, T. A.
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Nano-material is harder than diamonds Nano-material is harder than diamonds By Will Knight A material that is harder than diamond has been created in the lab, by packing together tiny “nanorods” of carbon. The new material, known as aggregated carbon nanorods (ACNR), was created by compressing and heating super-strong carbon molecules called buckyballs or carbon-60.
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- The hardest forms of plastic include plastic that has been mixed with other types of materials such as a very recent discovery by a team of Bangalore researchers where they strengthened ordinary plastic with nano-diamond (incredibly, tiny bits of diamond invisible to the naked eye), a sheet of layered carbon and tiny carbon cylinders.
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Hardest Part of the Human Body? Tooth Enamel is the hardest and most highly mineralized substance in the human body. It is a tissue and not a bone. This tissue has high mineral content which makes it hardest substance. Femur and Temporal bone of the skull are the hardest bones of the human body. Subject: Biology Exam Prep: CAT, Bank Exams, AIEEE Job Role: Bank PO
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Top 10 Hardest Mineral in the World Top 10 Hardest Mineral in the World. 10. Talc-Talc is a mineral composed of hydrate magnesium silicate and widely known as talcum powder. According to the Mohs hardness scale it is the softest mineral and easily scratched by nail and can be cut by knife.
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- It also has high thermal conductivity with a range of twice that of tool steel and carbon steel. A high resistance to corrosion enables it to be used in extreme conditions in or out doors. It also has a very high modulus of elasticity. Tungsten carbide is the hardest metal known to man.
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The Properties of Gold Gold is a very rare substance making up only ~3 parts per billion of the Earth's outer layer. (Imagine 1 billion Smarties in one place and only 3 of them were made of gold!). Its rarity and its physical properties have made it one of the most prized of Earth's natural resources.
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- Diamond is currently thought to be the hardest natural material on Earth, having a hardness of ten out of ten on the Mohs scale of mineral hardness.
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What is the whitest (reflects light) substance on Earth? According to the definition of the question (based on light reflection and not light emission), a well-polished mirror is the the whitest substance on earth. The main reflection layer is usually made out of silver.
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What are the hardest minerals? Diamond is always at the top of the scale, being the hardest mineral. There are ten minerals in Mohs scale, talc, gypsum, calcite, fluorite, apatite, orthoclase, quartz, topaz corundum, and for last and hardest, diamond.
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- Diamond is currently thought to be the hardest natural material on Earth, having a hardness of ten out of ten on the Mohs scale of mineral hardness. Diamond is made up of carbon atoms which share strong covalent bonds (where electrons are shared between atoms) and are equally spaced in a lattice arrangement.
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- Plutonium's often billed as the 'most toxic substance known to man'. Just the word plutonium instils a dread in people's minds-And it's the early history of plutonium that established its dark side-and it's a reputation that's been hard to shake-off since.ses. Plutonium was used in several of the first atomic bombs, and is still used in nuclear weapons. The complete detonation of a kilogram of plutonium produces an explosion equivalent to over 10,000 tonnes of chemical explosive. Plutonium is also a key material in the development of nuclear power.
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Which of the following sedimentary rocks would be the hardest? 1-Which of the following sedimentary rocks would be the hardest? a-shale b-chert c-siltstone d-halite 2-Which of the following is characteristic of a transgression? a-the seas move out, uncovering more land b-sand dunes and river sediments can be deposited over marine deposits c-marine...
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What is a Diamond? A diamond is the hardest naturally occurring material on Earth and is much rarer than gold. About 175,000 tons of gold have been mined in all of human history, while only around 500 tons of diamonds have been mined in the same amount of time.
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Top 10 Hardest Mineral in the World The red corundum is widely known as ruby and used as jewelry and all other colors are called sapphire. It is mined in Zimbabwe, Russia, Sri Lanka and India. 1. Diamond-Diamond is the hardest known natural material according to Mohs scale of mineral hardness.
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- Sugar is the hardest substance for the body to digest. It can take from anywhere between 2-5 years for the body to fully digest. Be sure to drink lots of water with your sugar … because it can speed up the digestion and guarantee it to digest in 2 years :). + 4 others found this useful.
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- Diamond is the hardest material in the world but it’s also brittle. Gemstone hardness is just one factor in a gem’s overall wearability or toughness grade. “Diamond Edge and Setting,” captured area 3×2 mm, by Kurt Bauschardt is licensed under CC By-SA 2.0.
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- The densest “liquid” on earth is actually a metal: mercury. Mercury is not only awesome to look at and incredibly poisonous to ingest, but it is also more than 12 times more dense than water. It rates at 13.5 grams per cubic cm on the ol’ density scale, making it denser than many solid metals, including lead.
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- Video: What is EMG/NCS? When weakness, pain, or a change in sensation occurs along a nerve, an electromyogram-a nerve conduction study-may be performed to determine whether there is degeneration of the nerve or if pressure on the nerve is causing the symptoms.ideo: What is EMG/NCS? When weakness, pain, or a change in sensation occurs along a nerve, an electromyogram-a nerve conduction study-may be performed to determine whether there is degeneration of the nerve or if pressure on the nerve is causing the symptoms.
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Diet after Wisdom tooth surgery Here are some eating suggestions for the first 1-2 weeks after your wisdom teeth are removed, based on my experience with this. Mashed Potatoes: These are easy to eat and can alternately be topped with gravy, sour cream, or butter for more variety. If the potatoes are well-mashed, this is one of the easiest foods to eat after wisdom teeth extraction. Sweet potatoes can also be considered.
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- Carbon is found free in nature in three allotropic forms; amorphous, graphite and diamond. A fourth form known as white carbon is now thought to exist. Graphite is one of the softest known materials, and diamond is one of the hardest.arbon is found in combination in hydrocarbons (methane gas, oil, and coal), and carbonates (limestone and dolomite). OCCURRENCE: Carbon ranks nineteenth in the order of abundance of the elements comprising about 0.2% of the earth's outer crust. In the earth's atmosphere, carbon is present as carbon dioxide.