The Alternative To Doubt Is Authority

What makes the planets go around the sun? At the time of Kepler, some people answered this problem by saying that there were angels behind them beating their wings and pushing the planets around an orbit. As you will see, the answer is not very far from the truth. The only difference is that the angels sit in a different direction and their wings push inwards. A law is not a cause; yet it is more than merely a description. It is true because it is beautiful and simple; yet it is never quite true at all. “That is the …

Scientists Must Stick Their Necks Out

How is it possible that we can extend our laws into regions we are not sure about? Why are we so confident that, because we have checked the energy conservation here, when we get a new phenomenon we can say it has to satisfy the law of conservation of energy? Every once in a while you read in the paper that physicists have discovered that one of their favorite laws is wrong. Is it then a mistake to say that a law is true in a region where you have not yet looked? If you will never say that a …