Since the primary source of infrared radiation is heat or thermal radiation, any object which has a temperature radiates in the infrared. Even objects that we think of as being very cold, such as an ice cube, emit infrared.

Where does infrared come from nature?

All objects in the universe emit some level of IR radiation, but two of the most obvious sources are the sun and fire. IR is a type of electromagnetic radiation, a continuum of frequencies produced when atoms absorb and then release energy.

How are infrared produced?

Infrared waves are produced by hot bodies and molecules. They are referred as heat waves because they are readily absorbed by water molecules in most materials, which increase their thermal motion, so they heat up the material. Infrared waves are used for therapeutic purpose and long distance photography. C.