E-bikes combine a bicycle with a big lithium battery, a speed controller, and a motor. What you get from that combination is simple, efficient transportation. [Tom Stanton] wanted to build an e-bike ...

Researchers studying fruit flies discovered that nerve cells sensing limb motion are turned off when the insect moves, ...

Airbags have been in development since the 1950s, were first used on the 1973 Oldsmobile Toronado, and have been standard equipment in the U.S. since 1999. Airbags are proven lifesavers, so why do ...