“A nation that is afraid to let its people judge the truth and falsehood in an open market is a nation that is afraid of its people.” – John F. Kennedy On November 22, 1963, crowds of excited people ...

There is a parlor game physics students play: Who was the greater genius? Galileo or Kepler? (Galileo.) Maxwell or Bohr? (Maxwell, but it's closer than you might think.) Hawking or Heisenberg? (A ...