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‘Coke Rocket’ Craze Sweeps Internet
BBC ‘Today’ programme, June 2006
A scientist explains how a 'coke rocket' experiment, which uses a bottle of cola and a packet of chewy sweets, works. View the video (in green promo box on right hand side of page)
Formula for the Perfect Formula
BBC News Online, June 2004
However mundane a task you are trying to perform, whether it's watering the garden or ironing a shirt, someone somewhere will probably have worked out a formula for doing it more effectively...
Heated Debate over Freezing Water
BBC World News, November 2003
A university expert has warned people against putting hot water in birdbaths - because it freezes more quickly. Dr Len Fisher, from the University of Bristol, also advised drivers to use cold water to remove frost from car windscreens. He carried out an experiment for the BBC's Today programme which proved the theory that hot water freezes faster than cold water...
 Does Hot or Cold Water Freeze Faster?
November 2003
In the freezing English November of 2003, the Society for the Protection of Birds circulated its members with the advice to put hot water in their bird baths to stop the water from freezing. This provoked a question from one member who had heard that hot water actually freezes faster than cold water, and a request from the BBC “Today” programme for me to explain if this was true, and to demonstrate it live if it was. It is, and I did. The problem goes back to the time of Aristotle, but it is now named after a Tanzanian schoolboy called M’Pemba who rediscovered it in 1969. To discover more, just search for “M’pemba’s Ice-Cream” on the Net.
Dr Len Fisher talks to the BBC
BBC Audio and Video, January 2003
It is science of everyday life.
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