Despite appearances, Napoleon, Hitler and Stalin have a few things in common. Each of them belonged to a minority from the country he tyrannized: Napoleon was Corsican (“I could recognize Corsica with closed eyes, only by her perfume”), Hitler...
E=mc². Just about everyone has at least heard of Albert Einstein's formulation of 1905, which came into the world as something of an afterthought. But far fewer can explain his insightful linkage of energy to mass. David Bodanis offers an easily...