Raging martians invaded Roy G. Biv using x-ray guns.

Mnemonic Device:

  • Raging Martians Invade Venus Using X-Ray Guns
  • Raging Martians Invaded roy g. biV Using X-ray Guns

Variations:

  • Randy Man In Vegas Uses X-rays on Girls
  • Ray Michaels Irritated Roy G. Biv Using Extreme Games
  • Ronald Mcdonald Is Very Ugly eXcept Garry
  • Ronald Mcdonald Is Very Ugly Xylophone George

Explanation: A few ways to remember the order of the Electromagnetic radiation spectrum’s wavelength from low to high frequency, from lowest to highest in energy.

  • Radio waves, Microwaves, Infrared, visible light (Red, Orange, Yellow, Green, Blue, Indigo, Violet), Ultraviolet, X-rays, and Gamma rays.

Tip: read the mnemonic with increasing speed so that it sounds like, “Rooonallld, Mcdonaald iis very ugly ‘cept Gry.”. This is to help you remember that the frequency increases from radio to gamma.

For the colors of the rainbow (visible light) we have this mnemonic

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