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Elementary school teachers in Waterloo, Ontario are resorting to wearing Kevlar vests to protect themselves from their students. The unusual move is in response to rising classroom violence from pupils and not based on a fear of being shot. Teachers are donning protective gear made from Kevlar, a material used in body armour, which includes […]
It can be difficult to fully recover from knee injuries or other damage to your joints, if just because there hasn’t been an artificial replacement for cartilage that can withstand as much punishment as the real thing. That may not be an issue in the long run, though: scientists have developed a Kevlar-based hydrogel that […]
Enlarge (credit: National Park Service/J Schmidt) Spider silk has some amazing material properties, so there’s lots of enthusiasm for the prospect of using it to make something useful. Unfortunately, spiders aren’t domesticated, and attempts to make the silk proteins in other organisms haven’t been entirely successful. And then there’s the matter of what to do […]
