Discover how to create a DIY mini portable fan that runs on your smartphone! This step-by-step tutorial guides you through ...

June 14, 2007 Miniature projectors embedded in our cell phones, handheld game consoles and other personal electronics appear very likely to play a major role in the future of information display.

A research team has developed a microelectromechanical system (MEMS) piezoelectric vibration energy harvester, which is only about 2 cm in diameter with a U-shaped metal vibration amplification ...