Electromagnetic Spectrum Diagram. Video Tour of the Electromagnetic Spectrum - Introduction - Mission:Science. Introduction to the Electromagnetic Spectrum - Mission:Science. When you tune your radio, watch TV, send a text message, or pop popcorn in a microwave oven, you are using electromagnetic energy.
You depend on this energy every hour of every day. Without it, the world you know could not exist. Electromagnetic energy travels in waves and spans a broad spectrum from very long radio waves to very short gamma rays. The human eye can only detect only a small portion of this spectrum called visible light. Electromagnetic Spectrum - Introduction. The electromagnetic (EM) spectrum is the range of all types of EM radiation.
Radiation is energy that travels and spreads out as it goes – the visible light that comes from a lamp in your house and the radio waves that come from a radio station are two types of electromagnetic radiation. The other types of EM radiation that make up the electromagnetic spectrum are microwaves, infrared light, ultraviolet light, X-rays and gamma-rays.