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: 1

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A metric tonne (1000 kg) should be called a megagram (1 Mg). (lemmy.ca)

submitted 1 year ago by [email protected] to c/[email protected]

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[–] [email protected] 2 points 1 year ago* (last edited 1 year ago)

Their definitions are no longer related, but their sizes are still roughly the same relative to each other. I mean that the unit for amount of substance is based on 12 grams of C, instead of 12 kg of C, despite the kilogram being the unit for mass. Some fields used to use that unit and called it a kg-mole, but that notation would be pretty confusing and you would want to have a different name. https://en.m.wikipedia.org/wiki/Mole_(unit)

I think the 2019 redefinition is really neat. They changed the system so that constants are defined instead of measured, in a way that makes estimates more precise. It's worth reading about if you're interested in the stuff.