.....

More robust simulation hypothesis, very interesting.
https://bigthink.com/surprising-science/new-hypothesis-argues-the-universe-simulates-itself-into-existence

I came across this riddle on internet, but I'm not gonna post the original link so it's not possible to find the answer ;)

It took me a moment to figure out but, as per usual, the answer is quite simple.

To recap:
The half-circles are all the same. The numbers obviously represent the distance between the circles. Based on this information, what is the diameter of any the 5 circles?

A meme from Science Page, fell for that myself ;)

A nice trivia I found today. If you count letters in words above, you will get the value of Pi to the following precision: 3.1415926

Therefore, it's a nice way to remember that.

Also, I could use a large container of coffee.

Apparently it was Numeracy day today

https://www.numeracyday.com/

I am not totally sure what that involves ;) but still ...

;)

Can you guess how formula for a circle's area was constructed? It's a brilliant idea btw. I'll add some hints in comments later.

One of my favorite proofs
https://www.youtube.com/watch?v=SDtFBSjNmm0