is spider silk stronger than steel?
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Spider silk is five times stronger than steel—now, scientists know why. ... To find out how most spider silk is five times stronger than steel, scientists analyzed the silk that venomous brown recluse spiders use to create their ground webs and hold their eggs, using an atomic force microscope.
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The Strength of Steel. Pound for pound, steel is the strongest construction material available (unless you count exotic materials like titanium). It is so much stronger than wood that the two cannot be fairly compared.
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At best, spider silk might compare to steel when it comes to tensile strength, which is the largest stress that a material can withstand before breaking. ... The stiffness of silk, which is its ability to deform elastically when force is applied, is many times less than that of steel.
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Iron is a great building material but steel (an alloy made by adding small amounts of nonmetallic carbon to iron) is stronger, harder, and rustproof. ... Generally, alloys are stronger and harder than their main metals, less malleable (harder to work) and less ductile (harder to pull into wires).
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Instead of boards, spiders produce silk threads to build their webs. The silk is produced in silk glands with the help of the spider's spinnerets. ... When a spider begins a web, it releases a silk thread. It anchors the thread to some object — a branch, a corner of a room, a doorframe — wherever it builds its web.
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“The strongest steel is forged by the fires of hell. It is pounded and struck repeatedly before it's plunged back into the molten fire. The fire gives it power and flexibility, and the blows give it STRENGTH. Those two thing make the metal pliable and able to withstand every battle it's called upon to fight.”
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The US Army cannot enlist enough spiders to provide the silk it needs to make stronger bullet-proof vests. These vests are currently made of Kevlar. But spider silk is stronger than Kevlar, even if it is less readily available.
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Japanese-Style Steel Knives made by Japanese manufacturers traditionally use high-carbon steel. It's a superior material for knife blades because it holds its super-sharp edge longer than stainless steel, due to a rating of 60-61 on the Rockwell scale. High-carbon steel is significantly harder but also more brittle.
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Swiss lace is a fine material that should be handled with care. The net is finer than that of French lace, so it less visible than French lace. Swiss lace is softer and more delicate than French lace but easier to tear while applying. ... French lace can bear medium hair density; if thicker, the lace will tear easily.
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Bone is extraordinarily strong — ounce for ounce, bone is stronger than steel, since a bar of steel of comparable size would weigh four or five times as much. A cubic inch of bone can in principle bear a load of 19,000 lbs.
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Silk is a natural protein fiber, some forms of which can be woven into textiles. The protein fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons.
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High quality Damascus steel is not the strongest metal you can get. For most projects and uses, though, it's plenty strong and durable. ... Remember, too, that there are different kinds of Damascus. Carbon Damascus is softer to work with but once hardened, it's harder than stainless.
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Primates (humans and monkeys) appear to be most susceptible, along with guinea pigs and mice. The spider's fangs are bigger than those of a brown snake (which are admittedly small at about 1 cm). The fangs (or chelicerae) are also very sharp and strong. They are allegedly able to pierce a fingernail and shoe leather.
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Carbon nanotubes are even stronger, with scientists reporting that they can handle 63 GPa or more. (Though according to the 1986 Official Handbook of the Marvel Universe, Spidey's webs are made of a nylon-like material that can support only a measly 54 kilograms per square millimeter, or 0.5 GPa.)
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Bone is extraordinarily strong — ounce for ounce, bone is stronger than steel, since a bar of steel of comparable size would weigh four or five times as much.
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In this sense, most spiders are venomous. However, in nearly all spiders, their venom is too weak to have a significant effect on a human. Also, the fangs of many species cannot pierce human skin. If a spider does bite, it will usually cause no more harm to a person than a moderate insect bite.
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Primary structure. Spider silk primarily consists of proteins that possess large quantities of nonpolar and hydrophobic amino acids like glycine or alanine, but for example, no or only very little tryptophan.