Why does water bubble when it boils?

What's the best position for sleeping? And why does fog rise from a lake surface on a cold morning? Dr Chris has the answers...
19 June 2019
Presented by Chris Smith with Africa Melane. 
Production by Chris Smith.


Kettle on stove


Join Africa Melane and Dr Chris for this week's round-up of science questions from the South African Cape, including why we can open the doors of a helicopter but not a passenger plane when it's flying, why water bubbles when it boils, what's the best position for sleeping, why fog rises from a lake surface on a cold day, and why boxers shouldn't blow their noses. Plus news of the world's first cannabis consumption...


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