The light that our eyes can see, including all of the colors of the rainbow, is just a small part of the larger spectrum of electromagnetic radiation, which includes radio waves, microwaves, infrared, ultraviolet, x-rays, and gamma rays.
Lumina pe care o putem vedea incluzând toate culorile curcubeului, e doar o mică parte dintr-un spectru mai larg al radiației electromagnetice, ce include undele radio, microundele, infraroșul, ultravioletele, razele X și razele gamma.