this post was submitted on 03 Apr 2026
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Showerthoughts

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A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. The most popular seem to be lighthearted clever little truths, hidden in daily life.

Here are some examples to inspire your own showerthoughts:

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Applies to many other colors as well. I "understand" why that is but it hurts my brain to think about.

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[–] cAUzapNEAGLb@lemmy.world 22 points 2 days ago* (last edited 2 days ago)

Humans assign certain names to certain wavelength of the em spectrum

In this case red is often defined as wavelenths between 625 to 700nm, greens are 500 to 565nm, while yellow is defined as 565 to 590nm.

If a human saw em light at 580nm, wed call that yellow

But for an rgb screen, it never produces light at 580nm, only red green and blue lights, but, as a quark of our biology, if humans see red and green light at certain amplitude ratios, most humans will interpret that light in the same way as it does light at 580nm

This to say, yellow light does exist, but screens do not make it, but it does make light that the human can interpret as the color of yellow regardless

(Didnt see the other comment before writting this one, sorry for the duplicate)