4 ms·
A clever chap figured out a method a couple of thousand years ago: http://en.wikipedia.org/wiki/Aristarchus_of_Samos http://en.wikipedia.org/wiki/Aristarchus_of
by rikkus 12y ago
A clever chap figured out a method a couple of thousand years ago: http://en.wikipedia.org/wiki/Aristarchus_of_Samos http://en.wikipedia.org/wiki/Aristarchus_of_Samos