In the eighth episode of this series, stunt driver Terry Grant is back again but this time showing us how to go loopy. We also discover trust means everything in one biker's relationship and we see how one person's passion for unicycling could take him over the edge.

Welcome to Stunt Science! In this show, we bow down to the pros who their life on the life for a living and salute the ""have-a-go"" heroes and amateurs who pull off Hollywood stunts using back-street budgets! Our scientists give us the low down on the physics of fast and the biology of the bizarre.

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