In fact, they’re only slightly longer and less powerful than ultraviolet (UV) waves (which are too short for people to see with the naked eye). Blue light has very short, high-energy waves. The longer the wave, the less energy it transmits. Visible light waves vary in length from 380 nanometers (violet light) to 700 nanometers (red light). But a small band of waves, known as visible light, can be detected by the human eye. ![]() ![]() Most electromagnetic waves are invisible. The waves vary in length from longer radio waves, microwaves, infrared, and UV waves to the shorties of the electromagnetic spectrum: X-rays and gamma rays. It travels around us, and even through us, in waves. ![]() The world is pulsing with electromagnetic energy.
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