Physics:Maiden Flights
When you are flying in the sky， a little knowledge of science can help you overcome fear. Aviation theory involves some important aspects， such as how you are lifted up into the air， what kind force makes you stay in the air， what will happen if the engine is damaged. All of these knowledge is helpful to the passengers and a must for the pilots.
- Added：2006
- Country：Britain
- Duration：30
- Time of update：2011/8/15 16:09:31