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Search Results for “Wavelength”
 
 
1) color. The Columbia Encyclopedia, Sixth Edition. 2001
...Light transmitted from an object to the eye stimulates the different color cones of the retina, thus making possible perception of various colors in the object. 1See...

2) spectrum. The Columbia Encyclopedia, Sixth Edition. 2001
...Beams of charged particles can be separated into a spectrum according to mass in a mass spectrometer (see mass spectrograph). Physicists often find it useful to separate...

3) X ray. The Columbia Encyclopedia, Sixth Edition. 2001
...Production of X RaysAn important source of X rays is synchrotron radiation. X rays are also produced in a highly evacuated glass bulb, called an X-ray tube, that...

4) Doppler effect. The Columbia Encyclopedia, Sixth Edition. 2001
...Doppler effect, change in the wavelength (or frequency) of energy in the form of waves, e.g., sound or light, as a result of motion of either the source or the receiver...

5) infrared radiation. The Columbia Encyclopedia, Sixth Edition. 2001
...Infrared rays thus occupy that part of the electromagnetic spectrum with a frequency less than that of visible light and greater than that of most radio waves, although...

6) spectroheliograph. The Columbia Encyclopedia, Sixth Edition. 2001
...The spectroheliograph was invented in 1890 independently by G. Hale and by H. Deslandres and modernized (1932) by R. R. McMath to take motion pictures. In operation,...

7) red shift. The Columbia Encyclopedia, Sixth Edition. 2001
...The effect was discovered by V. M. Slipher of Lowell Observatory. Some red shifts are the result of the Doppler effect, i.e., of the relative motion of the earth...

8) ultraviolet radiation. The Columbia Encyclopedia, Sixth Edition. 2001
...The ultraviolet radiation in sunlight is divided into three bands: UVA (320-400 nanometers), which can cause skin damage and may cause melanomatous skin cancer; UVB...

9) radio frequency. The Columbia Encyclopedia, Sixth Edition. 2001
...Some of these waves serve as carriers of the lower-frequency audio waves; others are modulated by video or digital information. Short waves have relatively high frequencies;...

10) light. The Columbia Encyclopedia, Sixth Edition. 2001
...The wavelengths of visible light range from about 350 or 400 nm to about 750 or 800 nm. The term "light" is often extended to adjacent wavelength ranges that the...

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