Number 967
Date Oct. 21st 2011
Previous Jet Fuel
Next Everything

Prairie is the 967th xkcd comic.


This is a reference to the wave-particle duality of matter. One interpretation of quantum physics states that light, when observed, acts as a particle, but when unobserved, acts as a wave.

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"Colorado is working to develop coherent amber waves, which would allow them to finally destroy Kansas and Nebraska with a devastating but majestic grain laser."

See alsoEdit

Wave-particle Duality Double-slit Experiment

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