Flames, Fireworks and Flies!

29 August 2008
Presented by Chris Smith


What is a flame? How do fireworks control their explosions? Why is it impossible to swat flies? Dr Chris tackles these question in this week's Ask the Naked Scientists as well as discovering how much heavier a tree is made by its leaves, predicting the outcome of a flu epidemic in todays society and revealing why a tea bag doesn't float in hot water.


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