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How many types of light are there? visiable and invisiable.
Hephzibah Ga, USA
Visible light is just a small part of the total electromagnetic spectrum which ranges from low frequency radio waves, through microwaves, infrared radiation, visible, ultra-violet, xrays, gamma rays, etc. The website at http://en.wikipedia.org/wiki/Electromagnetic_spectrum
has a lot of interesting details.
(published on 07/26/09)
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