What are infrared rays?

Infrared radiation is a type of electromagnetic radiation, as are radio waves, ultraviolet radiation, X-rays and microwaves. Infrared (IR) light is the part of the EM spectrum that people encounter most in everyday life, although much of it goes unnoticed. read more

Video: Infrared Radiation: Definition, Uses & Effects This lesson will explain what infrared radiation is and discuss a number of practical uses and effects of infrared, including its connection to climate change and the way the atmosphere responds to infrared waves. read more

Infrared radiation (IR) is electromagnetic radiation (EMR) with longer wavelengths than those of visible light, and is therefore generally invisible to the human eye (although IR at wavelengths up to 1050 nm from specially pulsed lasers can be seen by humans under certain conditions ). read more