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High speed generates a lift on aeroplane wings due to their asymmetrical profile.
Can a candle be re-lit if the flame of the match does not even touch it?
This animation introduces the studies of astronomers and physicists whose works fundamentally...
Submarines submerge and surface by changing the average density of the hull.
It is a well-known phenomenon that the sound of an approaching sound source is higher than that...
Is it possible to turn pure water into a soft drink in a few seconds?
The three important laws describing planetary motion were formulated by Johannes Kepler.
A hot air balloon is a balloon aircraft in which is lifted by hot air.