967: Prairie
explain xkcd: It's 'cause you're dumb.
| Prairie |
 Title text: 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. |
Explanation
This comic is a reference to the song America The Beautiful, which contains the line "...amber waves of grain...". In Quantum mechanics, the wave-particle duality explains that particles can act like both particles and waves depending on the context. Using a comedic adaptation of quantum theory, the waves of grain behave like particles of grain when observed.
In order to create a laser such as the one mentioned in the image text, the movement of the grain has to be interpreted as a wave motion.
Transcript
[Megan and Cueball are standing in a wheatfield]
Megan: Well, when we observe them, they become amber particles of grain.
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