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08-05 08_05.JPG |
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| Title: | THE ELECTROMAGNETIC SPECTRUM |
| Caption: | Wavelength (W) is the distance between one wave crest and the next. Values for wavelength in the electromagnetic spectrum have an enormous range from billionths of a meter for X-rays to thousands of meters for long radio waves. Electromagnetic waves travel at the speed of light in a vacuum--300,000 km (186,000 mi.) per second. |
| Keywords: | atmosphere, solar radiation, insolation, sunlight, electromagnetic radiation, electromagnetic spectrum, shortwave radiation, longwave radiation, wavelengths, infrared radiation |