Angles and Angels

We are all just struggling our way in this wonderful realm of nature that we know really very little about. Feynman has this wonderful quote about how the “theory of gravity” once was that the planets were being carried along by a whole flock of invisible angels. Then we ended up with a theory that it is this force between two masses that pulls at right angles to the motion. So he said “what we have done is we have gone back to the invisible angels except now they are pushing at a 90-degree angle to the motion.”

Carver Mead