You probably know silk comes from worms, but this fabric has been flexing for about 7,000 years. Its natural shine comes from a triangular fiber structure that bends light, and for centuries the method to make it was such a guarded secret it reshaped global trade along what we now call the Silk Road. It takes roughly 3,000 silkworms to make one kilogram of silk, and today most of it still ends up in fashion, with China producing more than the rest of the world combined. Beautiful, ancient, high