12:12 GMT08 July 2020
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    Sometimes, you don’t need fantasy because the real world looks bizarre and surreal enough. There's no witchcraft or sorcery here – just the good old laws of physics.

    The helicopter in the video below looks really strange - it appears to be flying without moving its rotors. Could it be magic? Actually, the reality is disappointing, and it doesn't involve any magical forces - just a small trick. The shutter speed of the camera that shot this video matches that of the helicopter's rotors, and that explains why they appear not to move at all. Their position is exactly the same on each frame of the footage.


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