6/6 The last episode sees science geek Greg under pressure as he attempts to dig to Australia.
5/6 Greg finds out if a coin falling from the top of the Empire State Building could kill you.
4/6 Greg finds out if you can escape when you're buried alive and why a boomerang comes back.
3/6 Greg finds out if winning unfair fights only happens in films and why the sky is blue.
2/6 Could a person survive in a falling lift if they jumped as it hits the ground?
1/6 Greg Foot finds out what humans taste of and whether a bellyflop could kill you.