Is there some evidence suggesting that humans are the Galaxy’s only intelligent species? Enrico Fermi thought so – and he was a pretty smart guy. Could he be right? In 1950, the famous physicist made ...
His guess? About 10 kilotons of TNT. The actual yield? 20 kilotons. Not bad for a back-of-the-envelope calculation. Fermi, the Nobel Prize-winning physicist responsible for the world’s first ...