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group of researchers from Sweden has unlocked one of nature's biggest secrets. scientists worked out how spiders make such strong silk when they spin their spider webs. silk that spiders spin is incredibly strong and is tougher than steel. For decades, scientists have been researching what makes silk so amazing. Finally, researchers from Sweden's University of Agricultural Sciences and Karolinska Institute have found answer. They found that the materials for webs are stored in spider's silk gland as protein. gland has level of acidity that helps to make protein into very strong silk. The researchers copied this process to make enough artificial spider-web silk to stretch for one kilometer.

The new artificial silk could be very useful to humans. Doctors are interested in it to use for stitches. They also think it can help skin recover after burn. Some doctors believe new silk could replace torn ligaments in body. Airplane manufacturers and makers of protective clothing also see many uses for new silk. Senior researcher Anna Rising spoke about how important discovery could be. She said: "This is first successful example of [copying] spider silk spinning. In future, this may allow industrial production of artificial silk for bio-material applications or for manufacture of advanced textiles." The silk could become important new material for us in the future.

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