Thales’ circles

wolframalpha:

There are 43,252,003,274,489,856,000 possible positions of Rubik’s cube.

One of those amusing toys that turns out to be a gift to science (in this case, group theory).

The Gordian–Rubik cube.

the-absolute-funniest-posts:

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(Source: meme4u, via howdidigetsofunny)