a box vox round-up of extremely polyhedral egg cartons — structural packaging for nature's "perfect package"
“ A smooth straight-line ride is not possible on triangular wheels: its wedges would cut into the ground. ”
Poster | HERON'S FORMULA von Jazzberry Blue | more posters at http://moreposter.de
Do cool symbols with your keyboard
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Riemann zeta function
Non euclidean geometry
Beautiful Mathematical GIFs Will Mesmerize You | IFLScience
A proof without words: cosine law by dissection