Your feet? They smell like a baboon's butthole. Especially at the gym. So, the brilliant dudes at places like Nike and Adidas have started lining their socks with nano-bits of silver to fight microbials and the intense funk radiating from your tootsies. It works (woohoo), but every time you wash them, some of the particles inevitably come loose from the sock and flush down the drain, ultimately winding up in local waterways. Where they poison fishies. To death. Not cool. In conclusion, have less stinky feet, thanks. [American Chemical Society via io9]