Managers at NASA claimed that there was a 1 in 100,000 chance of a catastrophic failure aboard Challenger Spacecraft, but Richard Feynman (theoretical physicist) discovered that NASA’s Engineers estimated the chance of a catastrophe to be closer to 1 in 200.

A person can live without food for about a month, but only about a week without water. If the amount of water in your body is reduced by just 1%, you’ll feel thirsty. If it’s reduced by 10%, you’ll die.