A diagram of the electromagnetic spectrum showing the 7 regions of the spectrum (from longest to shortest wavelength): radio waves, microwave, infrared, visible, ultraviolet, x-ray, and gamma rays. Examples of radio waves include fm & am radio frequencies. Mircrowaves are used in microwave ovens and their lengths are about the size of a baseball. Infrared waves are much shorter – about the size of a thickness of paper. The heat energy that radiates off human and other animals is in the infrared
"Most mammals will let some [UV light] into their eye," explained UCL vision expert Prof Glen Jeffery
Platinum is a chemical element with the chemical symbol Pt and an atomic number of 78. Its name is derived from the Spanish term platina, which is literally translated into "little silver". It is a dense, malleable, ductile, precious, gray-white transition metal. Platinum has six naturally occurring isotopes.