Like many wonders of nature, spider silk has remarkable properties that makes it outshine its manmade counterparts to this very day: their threads have have the same tensile strength — the amount of “stretch” a material can endure without breaking — as steel, but is only one-sixth as dense.
When Spiderman used his web to halt a R160 New York City subway train before it plunged off the tracks, the results were realistic, according to new U.K. research.