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It’s been difficult to explain patterns of toxic mercury in some parts of the world, such as why there’s so much of the toxin deposited into ecosystems from the air in the southeastern United States, ...
Unraveling silks’ secrets（图）
silks’ secrets stronger synthetic materials Spiders and silkworms
2010/3/24
Spiders and silkworms are masters of materials science, but scientists are finally catching up. Silks are among the toughest materials known, stronger and less brittle, pound for pound, than steel. No...