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The Naked Scientists: Science Radio & Science Podcasts

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12th Aug 2007

Summer Special Naked Science Question and Answer


Chris Smith

Dave Ansell

Helen Scales

This week, do diet foods make children fat? Could a space screw save us from catastrophic collisions? Have we seen the last of the Yangtze river dolphin? And should we look to the Simpsons for our science? Writer Al Jean explains that, depite the three eyed fish and three fingered hands, it's one of the most science literate shows on television. Also, as it's our Summer Special Question and Answer show we tackle your questions ranging from rising cakes to rising heart rates, why the moon looms larger on the horizon and why magnets make bad television. Plus, in kitchen science we investigate the mystery of Mr Matey's colour changing bubble bath!

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News

Diet foods make children fat

US researchers have found that giving young animals diet foods can trigger obesity by encouraging overeating behaviours, suggesting that the same thing could happen to young children. Writing in the journal Obesity, University of Alberta researcher David Pierce and his colleagues have found that giv...

Perseids Meteor Shower

If you happen to look up tonight you ahould be in for some cosmic fireworks. It is the peak of the Perseid Meteor Shower tonight and it is a new moon so the sky should be very dark so the meteors stand out really well, teh best conditions for the next 15 years in fact.   The Perseids are so ca...

Wave goodbye to the reefs.

We often hear about coral reefs being the rainforests of the sea – both habitats are packed full of thousands of species and sadly both are being lost at ever more alarming rates.And this week we’ve heard a piece of really bad news for coral reefs, because they may be disappearing much more quickly ...

Nuclear Space Screw Tackles NEOs

Although space scientists are confident that they have mapped the majority of "near Earth objects" that could conceiveably collide with us, and found that we're safe for now, there's always the possiblity that something unexpected might happen. Like the asteroid Apophis, which will slip pa...

Bye bye River Dolphin?

I don’t mean to be the harbinger of bad news – but it happens this week we’ve had another piece of important but incredibly depressing news from the aquatic world.It looks like we might have to wave goodbye to the Yangtze river dolphin in China. Researchers from Zoology Society of London (ZSL) repor...


Interviews

Scientific Springfield - The Science of the Simpsons

Nature's Micheal Hopkin spoke to Al Jean about how The Simpsons is, perhaps surprisingly, one of the most scientifically literate shows around.

"Whats Science Ever Done for Us?" What the Simpsons Can Teach Us About Physics, Robots, Life and the Universe

We spoke to Professor Paul Halpern, author of "What's Science Ever Done for Us?: What the Simpsons Can Teach Us About Physics, Robots, Life and the Universe”


Kitchen Science

Part 1 Part 2 Listen
...or download as MP3 [1] [2]

Why Does Bubble Bath Change Colour

We were asked why it is that Mr Matey bubble bath changes colour when you mix it with water. We did an experiment to find out, and you could find out too!


Questions

I’m approaching retirement and I have a high heart rate (up to 195bpm when I’m really working hard), I do quite a lot of training, so is this normal?


When you see a full moon low in the sky, it looks very large compared to how it looks directly overhead. Is this because we’re looking through a thicker layer of atmosphere, which acts like a lens?


When you are alone, in a room with no external influences, you can hear a humming sound which appears to be coming from inside your head, or somewhere internal. What’s the source of this droning sound?


I recently heard a statistic quoted on a TV program which concerned me, but I haven’t been able to confirm it’s accuracy. They said that 90% of all big fish in the sea have disappeared in the last 40 years. This could be reversed if fish stocks are left to recover, provided certain fish have not become extinct. Is this simply down to over fishing, or is there a different explanation , such as global warming?


Why does touching a magnet on a computer or tv screen turn it different colours? Why do the colours sometimes stay?


I’ve been watching meteors for the past week, and I live in the country with very little light pollution. However I can see the glow of a nearby town, despite the town being over the horizon and even when the night is crystal clear, so there are no clouds for the light to reflect off. What is the liught reflecting off to get to me?


What information do you get from CT images of the brain and how do you read them?


I was watching a programme the other day about lining the arteries when you have a problem with them. How does a stent open out when it’s put in there?


What is it in soap that kills all the nasties?






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