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.
After just yesterday getting wind of a new red colorway of Pharrellâs coveted adidas NMD sneaker, we now get a closer look at the green pair that P was spotted rocking previously. The green version features the same âHuman Raceâ tagging on the midfoot, in addition to a white Boost sole unit underneath. Again, a black cage provides additional contrast, while tonal laces accompany. And much like the recently-revealed red color option, there is no release date as of yet for the green iteration.