Tractor Beams, Phone Masts and Living in Space!

17 September 2010
Presented by Dave Ansell, Sue Marchant


 Astronaut Bruce McCandless II, mission specialist, participates in a extra-vehicular activity (EVA), a few meters away from the cabin of the shuttle Challenger. He is using a nitrogen-propelled hand-controlled manned manoeuvring unit (MMU). He is...


How does a mobile phone mast work? What affect does living in space have on the human body? Could tractor beams become a reality? We take on these space age questions in this week's show as well as reveal the land area of Earth, why people in the Southern Hemisphere don't walk on their heads, why hair looks darker when wet and why alcohol makes you feel happy. Plus, we investigate what would happen if we drilled to the centre of the Earth!


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