Why are there 360 degrees in a circle?

10 August 2012
Presented by Chris Smith, Redi Tlhabi.

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How do nerves conduct electrical impulses? How long does it take a bee colony to make a beehive? Why are there 360 degrees in a circle? How does special relativity work? What happens to a live insect if you swallow it? Is there a north, south, east and west in space? What happens to a diesel engine when the fuel shuts off? Dr Chris needs your help this week, because he's not an apiculturist or a mathematical historian...

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