Terence Tao on the cosmic distance ladder

Transcript

Einstein once wrote an introduction to a book on astronomy. He mentioned this idea, he called it an idea of pure genius. This is Terence Tao, one of the world's most renowned mathematicians. What he's referencing right now is how Kepler deduced the shape of Earth's orbit, which was astoundingly more clever than I had realized. But I'm getting a lit... Read More