Newton, Galileo and Pascal were playing hide and seek... ...Pascal taps Galileo and decides he is seeking before running to hide. Galileo begins to count. Newton grabs a piece of chalk from his pocket because all scientists have pieces of chalk in their pocket and proceeds to draw a square with 1m dimensions around him. By the time he is done Galileo turns and says I've found you Newton. Newton replies with ""no, you've found one Newton per square metre. You've found Pascal"".