Cosmo's bike helmet light will alert others when you fall
Cycling can be dangerous, especially if you ride at night or in busy metropolitan areas. To help, a startup called Cosmo Connected is working on a smart light that clips onto the back of your helmet. Eight LEDs — four red, four yellow — are positioned in an oval shape. By default, they're set to an "always-on" position so that you're clearly visible in the dark. An accelerometer inside will know when you're braking, however, and warn fellow cyclists, drivers and pedestrians with a more intense light. Cosmo's bike light works with a companion app on your phone. Here, you can trigger a flashing "emergency alert" or make left and right signals by mashing the screen or pressing the company's optional, handlebar-mounted remote control. It will also be possible to enter your journey beforehand and trigger turn signals automatically via GPS tracking. Finally, Cosmo Connected says the accelerometer will double as a fall detector, notifying friends a...