Science Class
Saturday, August 21, 2010
Vocabulary 2
Electromagnetism:The production of magnetism by elctricity and the production of electricity and the production of electricity by magnets.
Electromagnetic Spectrum:All the wavelengths of visible and invisible light in order from short (gamma rays) to long (radio).
Laser:A device that produces a thin stream light of just a few close wavelengths.
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