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| | Evidence for Electromagnetic Waves (Site not responding. Last check: 2007-10-10) |
 | | Modern astronomy, though, has other ways of observing the cosmos; instruments have been developed that can detect types of radiation other than light, so that we can now take "pictures" of the sky in infrared, radio, or x-ray wavelengths. |
 | | If they moved at different speeds, the planets, stars, and galaxies would appear to be in different places depending on which wavelength we used to view them--but they don't. |
 | | So you see, it isn't so incredible to say that light, x-rays, and microwaves are all different forms of the same thing. |
| www.colorado.edu /physics/2000/waves_particles/astronomy.html (357 words) |
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