While most people may swear that they'd never do it, the fact is that drivers do sometimes forget that they've got an infant or pet in the car, leaving them in the parked vehicle to potentially overheat or freeze. A newly-developed radar sensor, however, could keep that from happening.
Developed by scientists at Canada's University of Waterloo, the disc-shaped device is just 3 cm (1.2 in) in diameter, and is designed to be mounted on the car's ceiling or rearview mirror. It's powered by the vehicle's battery, but otherwise operates wirelessly.
