Saturday, September 19, 2009

The Spectrum

Human Visual Spectrum: 380-750nm or Terahertz (THz) Human Audio Spectrum: 20-20,000Hz Electromagnetic Spectrum: Gamma Rays (1 GeV, 2.4x10[23] Hz*) - nanohertz) 2.9×10[27] Hz sources have been documeted by astronomer
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