According to the U.S. Department of Energy, the electricity used to light businesses represents 25% of the energy they spend, so it's important to develop energy-saving devices. Now engineers at the ...

I was raised in a household where turning off a light switch when one left a room was second nature. Being yelled at helped, having my parents take the light bulbs from my room and make me buy them ...

This file type includes high-resolution graphics and schematics when applicable. 1. Construction of the triboelectric switch shows the layered implementation, which allows for rubbing and thus ...

It never fails … you go to use a device that should be fully charged, but its battery has gone flat over time. Such may soon no longer be the case, however, if battery manufacturers simply start using ...