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Is there an easy way to generate a list of CMYK color values that will appear identical to the human eye under 589nm light?
I picked up a low pressure sodium lamp and am working on a Halloween demonstration. I’m hoping to make a display that appears one way under normal light, but looks totally different under the monochromatic 589nm sodium vapor light....
How can we define a robust metric for "most discontinuous country" and then rank all states according to it?
More of a classification question, but I’m really curious about what the metric would look like if we try to be systematic about it....
How could SI units be derived from scratch without the use of modern technology?
Think “you wake up in the woods naked,” Dr. Stone-style tech reset. How could humans acquire a 1-gram weight, a centimeter ruler, an HH:MM:SS timekeeping device, etc. starting with natural resources?...
What happens if an electron collides with an antimatter particle that is not a positron?
I know that if an electron collides with its antiparticle, the positron, they annihilate each other and energy is released. But what happens if an electron collides with other antimatter that is not its antiparticle, like an antiproton or an antineutron? Do they annihilate each other too?