Physics jokes can be funny too…

Newton, Pascal, and Einstein are playing hide-and-go-seek in heaven.

Einstein closes his eyes and starts counting.

Pascal goes and hides behind a cloud.

Newton stays where he is, and draws a 1mx1m square on the floor around him.

Einstein finishes counting and turns around.

“Ah ha, Newton! I found you!”

“No you haven’t, you’ve found one Newton over 1m² … You found Pascal.”