1. “Every vision is a joke until the first man accomplishes it.” - Robert H. Goddard

2. Newton’s 3 rd Law: “For every action force there is an equal and opposite reaction force.” Hero’s steam engine About 300 BC Chinese alchemists invent gunpowder invented by 9 th century Surface-running rocket-powered torpedo for setting enemy ships on fire. - Joanes de Fontana, Italy

3. 1898 - Russian schoolteacher Konstantin Tsiolkovsky proposes rocket space exploration. New York Times, 1921 “[Prof. Goddard] does not know the relation of action and reaction; [rockets] need to have something better than a vacuum against which to react. He seems to lack the knowledge ladled out daily in high schools.”

4. V-2 Rocket http://www.youtube.com/watch?v=WjFTN- YdK_M http://www.youtube.com/watch?v=WjFTN- YdK_M 1969, Apollo astronauts’ first lunar landing. “The Times regrets the error.”