2006-09-16 12:15:17 · 4 answers · asked by krazy_but_kewl 1 in Science & Mathematics ➔ Physics
heat
or infrared if you want to refer to it by it's range in the EM spectrum
2006-09-16 12:17:31 · answer #1 · answered by holden 4 · 1⤊ 1⤋
Infra red radiation. But a growth field today is teraherz radiation, with a wavelength of around a tenth of a millimetre, so it falls between IR and microwaves.It is basically just long wavelength infra red. It's given off by even moderately warm objects and it penetrates insulating objects better than infra red. So a teraherz camera can photograph your body through your clothes.
2006-09-16 12:53:15 · answer #2 · answered by zee_prime 6 · 0⤊ 0⤋
Heat radiation is a small part of electromagnetic radiation, it sits near the visible spectrum.
2006-09-16 12:59:01 · answer #3 · answered by treb67 2 · 0⤊ 0⤋
convection
2006-09-16 12:23:17 · answer #4 · answered by dude_port 3 · 0⤊ 0⤋