Put This Sensor On Your Food And See If It’s Safe To Eat (Cool Weird Awesome 383)
A sensor developed at MIT uses a set of microneedles to push through packaging and determine whether the food inside is safe to eat, which could prevent food waste and help head off outbreaks of salmonella. Plus: did you know China is apparently home to several thousand glass footbridges, where you can walk across and see what's underneath?