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How to put a human on Mars: Artificial gravity

22 July 2013 Last updated at 18:28 BST

An Imperial College team discuss how we could create artificial gravity to prevent muscle and bone loss in a human crew on a trip to Mars.

They start in the playground with a demonstration of how centrifugal forces can be used to generate artificial gravity.

Video journalist: Neil Bowdler. Animation: George Spencer. Music: Spiro.

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