Since its development in China thousands of years ago, silk from silkworms, spiders and other insects has been used for high-end, luxury fabrics as well as for parachutes and medical sutures. Now, researchers are untangling some of its most closely guarded secrets, and explaining why silk is so super strong. Researchers find that the weakest chemical bonds produce materials stronger than steel.
Read »Spider silk reveals a paradox of super-strength
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