The spirals in a shell are logarithmic spirals, different from the one which is shown here...
A golf ball is made out of pentagons and hexagons, three of them arriving in each vertex. ...
The spirals we see in a shell are logarithmic spirals, different from archimedean spirals,...
The geometric central element of a bretzel is a braid with two threads, and it is the same...
It seems that the inventor of the chess game asked a reward of a bit of rice: just one gra...
