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11th Mar 2007
Naked Scientists Question and Answer Show
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Contaminated petrol, astronauts in danger of lung diseases, a new way to put the brakes on car accident rates, gas sensors made from silicon replicas of marine algae, how pollution is causing droughts, plus a healthy digest of your science questions and emails top the bill in this week's Naked Scientists.
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News
Pollution seems to be affecting rainfall in mountainous areas, there have been many reports of this over the last few years but now there is some hard evidence for this effect.
Daniel Roesnfeld of the Hebrew University in Jerusalem has been studying rainfall, and the amount of pollution on Mt Hua, ...
Canadian researchers have come up with a way to make the roads safer, with a revolution in brake-light design. University of Toronto researchers Zhonghai Li and Paul Milgram realised that although brake lights signal when a car in front may beslowing down, they give no indication of how hard the bra...
Scientists in Helsinki have spotted an asteroid behaving badly, and it's all down to light. Mikko Kaasalainen, from the University of Helsinki in Finland, has been watching an asteroid called Apollo, which is about 1 mile across and spinning. But careful measurements have revealed that the asteroid ...
NASA have just published a report on how the should look for asteroids that may be on killer orbits and collide with the Earth, like in the Hollywood blockbuster Deep Impact.
Space is unfortunately a big place and asteroids are pretty tiny by comparison, being only metres or kilometres across. This...
Kitchen Science
Carbon Dioxide is an invisible gas that amongst other things we breath out. In this experiment you can see it.
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Interviews
We discuss why cars have been failing all over the UK recently, and what was in their petrol to cause the problem.
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