this post was submitted on 01 Oct 2023
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Today I Learned

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Post direct links to interesting facts that you just learned about today

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[–] [email protected] 7 points 1 year ago (1 children)

So, pi involves measuring circles. In fact, just think of a pie. It's a circle, right? There you go. The observable universe is the size of forty of those circles (or pies, shortened to "pi"). The size of it all just blows your mind. As for the hydrogen atom, single atoms are tiny, so you can safely ignore it.

[–] [email protected] 6 points 1 year ago (1 children)

We're closer in scale to the observable universe than a single hydrogen atom if that's any help.

[–] [email protected] 2 points 1 year ago