- Astronomers use telescopes to focus and collect electromagnetic radiation from cosmic sources.
- Most people are only familiar with optical telescopes, that is telescopes that detect radiation in the visible spectrum. BUT....
- Since gamma-rays, x-rays, radio waves, infrared waves and ultraviolet waves are also forms of electromagnetic radiation, telescopes can also be designed to detect those waves.
Wednesday, August 1, 2007
HOW DOES A TELESCOPE WORK?
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