The Battle of Britain was one of the great turning points of WWII. The air battle -- fought largely over Southern England -- was a vital victory for the Allies. From a morale point of view, it proved ...
Morning Overview on MSN
Who invented the modern rocket engine?
Modern spaceflight rests on a deceptively simple idea: a machine that carries its own fuel and oxidizer, then hurls exhaust backward fast enough to push itself forward. The person who first turned ...
German engineer and inventor Konrad Zuse is considered as the inventor of the modern computer but was frustrated in his ...
When you push or pull with a simple machine, you are applying a force and doing work. And, if you get more force out of a machine than you put into it, then that machine has a mechanical advantage.
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