Came across this one today. Sprinkling sugar on a prolapsed anus can make it go back in.
this post was submitted on 28 Oct 2023
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0.999... (infinite nines) and 1 are equal. They are two representations of the same number, like 0.5 and 1/2 (one half) are.
While it's easy to prove rigorously I think the easiest way to think about it is to think what number/numbers could go between 0.9 repeating and 1.
I guess that it also requires a second thought experiment that if no numbers can go between two numbers, those two numbers must be the same.
edit: this might be even easier:
1/3 = 0.333... -> multiply both sides by 3
3/3 = 0.999...
1 = 0.999...
Maine is the closest US state to Africa.
Here's a capital city one for the Brits and fans of this fair isle:
Edinburgh is due north of Cardiff.
This one blew my mind when I figured it out. I mean: Scotland is north of England. Edinburgh is in the east of Scotland. Wales is west of (most of) England.
You might (as I did) expect Edinburgh to be closer to being north of London, not so far west that it has the same longitude as Cardiff.
In Vatican, there are 2,28 popes per square kilometer.