Infrared
- Created by: mattisrenee
- Created on: 28-01-15 11:20
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- Infra red
- invisible radiant energy
- has longer wavelengths than those of visible light
- Far infrared waves are thermal
- used to heat food
- replaced by rays of infrared light spreading throughout the room
- All objects emit and absorb thermal radiation
- this type of infrared radiation is given every day in the form of heat
- Shorter and nearer infrared waves are not hot
- At normal body temperature, humans radiate in the infrared at a wavelength of around 10 microns
- To make infrared pictures we use special cameras that film and detect differences in temperature.
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