And in answer to Euclid’s question of the ‘number of points in a line ?’ Galileo concludes:- …..I shall ask you to tell me whether, in your opinion, a continuum is made up of a finite...

Albert Einstein (1879-1955) built further on this pivotal idea and it led him to the discovery of the photo-electric effect in 1906. In fact this work got Einstein his Nobel Prize. He...