Bionic eyes could make glasses a thing of the past, scientists say. They are developing a system that will let patients correct faulty eyesight simply by tapping the side of their head.

Bat Eye Switch, Antenna Activator, Police Band Cut-In Switch, Automatic Tire Inflation Device, Remote Batcomputer, the Batphone, Emergency Bat Turn Lever, Anti-Fire Activator, Bat Smoke ...

Because bats are small, secretive, feed at night, and are unfamiliar to most people, they are sometimes regarded as rare. On the contrary, they are found throughout the world except for certain ...