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 steream of linght of just a few close wavelengths.
lunes, 27 de septiembre de 2010
Vocabulary 4
electromagnetism: The production of magnetism by 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 steream of linght of just a few close wavelengths.
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 steream of linght of just a few close wavelengths.
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