Mathematicians Of The Day

18th November



On this day in 1752, Christian Goldbach wrote to Euler conjecturing that any odd number could be written in the form 2n2+p2n^2 + p where p is prime. A counterexample was found in 1856.

The postage stamp of one of today's mathematicians at THIS LINK was issued in 2014.

Click on for a poster.


Quotation of the day

From Niels Bohr
A visitor to Niels Bohr's country cottage, noticing a horseshoe hanging on the wall, teasing the eminent scientist about this ancient superstition. Can it be true that you, of all people, believe it will bring you luck?'
'Of course not,' replied Bohr, 'but I understand it brings you luck whether you believe it or not.'