Rabbit and Mathematics
You probably recognized it right away, the sequence of numbers up there. There are the first Fibonacci numbers, named after the Italian mathematician Leornardo of Pisa, known by the name Fibonacci (filius Bonacci - son of Bonacci). In his calculation book "Liber Abacci" (Book of Abacus) he dealt with the following task: Someone puts a pair of rabbits in a closed garden to find out how many rabbits are born within a year. If it is assumed that each pair produces another pair each month, and that rabbits are sexually mature two months after birth, how many pairs of rabbits are born each year?

Fibonacci and the Golden Number
The solution of the rabbit problem resulted in the Fibonacci numbers, an infinite sequence of numbers, in which the following number results from the addition of its two previous numbers. Johannes Kepler later stated that the quotient of two successive Fibonacci numbers approaches the Golden Ratio Φ . The golden ratio is a certain ratio between two numbers or two quantities and expresses itself in the golden number Φ (Phi ≈ 1,618). The golden ratio and Fibonacci numbers both occur in nature and in art, as the impressive film by Cristóbal Vila shows.

It remains to be said: not only grinding is an art, but also mathematics.