
BC 0500? Hippasus
 R
According to Pythagoras theorem the diagonal length of a square with each side measuring one unit would be square root of two.
The assumption that square root of two could be expressed as a ratio of two integers deduces a contradiction.
http://qindex.info/d.php?c=5148#5026


BC 0300? Euclid
 R
It was the Greek mathematician Euclid who produced the first precise description of the golden ratio.
A length is devided into two parts in such a way that the smaller part is to the larger part in the same proportion as the larger one is to the whole.
http://qindex.info/d.php?c=5148#5055


1202 Leonardo Fibonacci
 R
Fibonacci asked himself how many pairs of rabbits originated from a single pair in one year. Each pair of rabbits will produce exactly one more pair of both sexes per month which in turn would be fertile from the second month after birth.
http://qindex.info/d.php?c=5148#4759


1571  1630 Johannes Kepler
 R
Keplar observed that the relationship between a number in Fibonacci sequence and the previous number more and more closely approaches the irrational number Phi the longer the sequence is continued and Phi describes nothing other than the golden section.
http://qindex.info/d.php?c=5148#5056


1643  1727 Isaac Newton
 R
Galileo had already discovered some years prior that the distance traveled by a falling object is represented by a function of time.
Newton wondered how one could calculate the velocity of the object at any particular instance during the fall.
http://qindex.info/d.php?c=5148#5035

