Space, Sciatica and Solar Power

How does Solar heating work? What is Sciatica? What's the point of space exploration? We tackle these challenges in this week's show...
16 January 2009
Presented by Chris Smith

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Polycrystalline Silicon photovoltaic module

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How does Solar heating work? What is Sciatica? What's the point of space exploration? We tackle these challenges in this week's show. We'll also be finding out why we get headaches, whether we can duplicate stem cells using their DNA and explain why it's possible for humans to land on the Moon, but not Mars.

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