Charles Darwin, Hydrofoil and 3D - S2.E3
Dallas takes on the latest lie detection technology, while Liz looks at the dilemma that threatened to undermine her hero Charles Darwin. Jem faces his toughest challenge yet, to build a human-powered hydrofoil, and Dr Yan gets on the 3D bandwagon.
Charles Darwin, Hydrofoil and 3D - S2.E3
March 29, 2010
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