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These Olympic quantities have been jumbled up! Can you put them back together again?
The triathlon is a physically gruelling challenge. Can you work out which athlete burnt the most calories?
My measurements have got all jumbled up! Swap them around and see if you can find a combination where every measurement is valid.
Could nanotechnology be used to see if an artery is blocked? Or is this just science fiction?
A security camera, taking pictures each half a second, films a cyclist going by. In the film, the cyclist appears to go forward while the wheels appear to go backwards. Why?