I looked this up in 3 diffrent places but i can't find a nice sentrence or two to sum it up it gives me several paragraph..do you know? i know it is used for studing manly balls of gas or stars in outspace..
2007-02-14 13:28:57 · 3 answers · asked by Milo Camalanee 2 in Science & Mathematics ➔ Astronomy & Space
It is probably being used to describe a region of what is commonly known as the radio spectrum (correctly, the electromagnetic spectrum) of interest to astronomers. It describes the wavelength of the signals. Television signals have wavelengths on the order of a few meters. Radar gets down to centimeters. Radio-telescopes in astronomy can listen to a variety of wavelengths to "see" things of interest. Millimeter wavelengths are way out there, getting close to the bottom end of what we call light.
2007-02-14 21:44:35 · answer #1 · answered by ZORCH 6 · 0⤊ 0⤋
The wavelength of a signal or wave is the distance between two adjacent troughs or two adjacent peaks on the wave. If the distance is 1mm, then it is a millimeter wave. The corresponding frequency is given by
f = velocity of propagation/wavelength
2007-02-14 21:36:59 · answer #2 · answered by kardak123 2 · 0⤊ 1⤋
see:
http://en.wikipedia.org/wiki/Millimeter_wave
2007-02-14 21:45:01 · answer #3 · answered by arbiter007 6 · 0⤊ 1⤋