User Friendly Thermodynamics

Geek summarizes the three laws of Thermodynamics in User Friendly terminology:

1. You can’t win
2. You can’t break even
3. You’re always playing the game

for the slightly more scientifically minded:

1. The amount of energy in a system never increases.
2. The total entropy of the universe is increasing.
3. You can’t reach absolute zero and absolute zero is the only place where the laws don’t apply.