Naked Scientists Podcast

Naked Scientists episode

Sat, 11th Aug 2007

Summer Special Naked Science Question and Answer

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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In this edition of Naked Scientists

Full Transcript

  • 17:02 - 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!

  • 19:22 - Why does the moon on the horizon look bigger?

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

  • 21:03 - Why can you hear a humming sound inside your head?

    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. Whatís the source of this droning sound?

  • 22:39 - Have 90% of lare fish disappeared?

    I recently heard a statistic quoted on a TV program which concerned me, but I havenít been able to confirm itís 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 cer...

 

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