Light-emitting diode, A light-emitting diode (LED) is a semiconductor light source that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons.This effect is called electroluminescence. The color of the light (corresponding to the energy of the photons) is determined by the energy required for electrons to cross the band gap
Colors and Color Healing – crystalinks, Colors and Frequenices. Blue. Blue is a color, the perception of which is evoked by light having a spectrum dominated by energy with a wavelength of roughly 440-490 nm. It is considered one of the additive primary colors. On the HSV Color Wheel, the complement of blue is yellow; that is, a color corresponding to an equal mixture of red and green light.
Jupiter – Solar System, Jupiter This image was taken by NASA’s Hubble Space Telescope on February 13, 1995. The image provides a detailed look at a unique cluster of three white oval-shaped storms that lie southwest (below and to the left) of Jupiter’s Great Red Spot.