Researchers from the Florida State University have developed a molecule that can take measure temperature, emit white light, and convert photon energy directly to mechanical motions. The molecular structure resembles a butterfly. It can flap its “wings” and emit white light; it switches from blue to green to red in picoseconds or less. The molecule is extremely sensitive to temperature. It registers temperature change by emission color. The researchers believe this is the first example of a white phosphorescent molecule based on the formation of two distinct excited states by a photoinduced structural change.