Energy of a photon : E = hf The photoelectric effect works like this. If you shine light of high enough energy on to a metal, electrons will be emitted from the metal. Light below a certain threshold frequency, no matter how intense, will not cause any electrons to be emitted.
The Boogie Board Jot 8.5 is an uber-slim slate with a black 8.5â³ screen. The stylus clicks into the opening under the screen. When you use the stylus it writes on the screen in a bright green color. The company claims this board is 50% brighter than their previous Jot model.
Last October 20, 2014 in the Philippines, Logictech showcased the alleged fastest gaming mouse ever made, the LogitechÂ® G402 Hyperion Furyâ¢ Ultra-Fast FPS Gaming Mouse. It features Logitechâs exclusive Fusion Engineâ¢ sensor that can track over 500 inches per second and their Delta Zeroâ¢ sensor tech to create unparalleled pin point accuracy.