Science Podcasts

Naked Scientists episode

Sun, 24th Jun 2007

ARMAGEDDON! - The Science of Supervolcanoes, Meteor Strikes, Earthquakes and Arsenic

Lava (c) National Parks Service, US Government

This week a rabies-based Trojan Horse that smuggles drugs across the blood-brain barrier, why first-borns are brighter, progress with Parkinson's and a lunar telescope more powerful than Hubble. Plus in this week's ARMAGEDDON-focused show we look at supervolcanes, earthquakes and arsenic, find out why curtains are absolutely lethal and why a meteorite impact probably didn't dispense with the dinosaurs after all. Also, in Kitchen Science, we test the claim that tapping the top of a fizzy drink before you open it stops it spraying all over you...

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In this edition of Naked Scientists

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  • 16:21 - Coke Can Eruption

    Does tapping the top of a can keep you safe from a fizz eruption?

  • 17:51 - Could nylon create sparks?

    Should there be a sign at fuel stations about soccer (football) shirts causing sparks? I seen the sparks from the shirt but never seen sparks caused by a moblie phone etc. We have signs about phones etc. at the fuel station. Is there more potential to start a fire from a shirt th...

  • 19:04 - Why shouldn't you drink before a CAT scan?

    In an eleven month period recently I had 3 CAT scans and one PET scan. For the last two CAT scans they said “no contrast”, which was, apparently something to drink 15 minutes before the scan. I thought it might be something with a large scattering cross section for X-radiation ...

  • 20:32 - Why do you jerk when asleep?

    Sometimes, as I fall asleep, I feel my legs jerk powerfully. This is usually accompanied by a dream about falling. Why does this happen?

  • 33:03 - Deep Quake

    We spoke to Peter Kelemen, who studies the earthquakes that originate deep in the mantle of the Earth

  • 39:20 - Poisoned Land - Arsenic in Argentina

    Michael Watts on how to search for arsenic in contaminated land, and the impact on people's health

 

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It will do this, and I think it is because the impact is absorbed by the drink spinning rather than shaking and going turbulent which tends to mix in less bubbles than dropiing vertically, and the ones it will I think are larger so float up much quicker. daveshorts, Fri, 29th Jun 2007

excellent, cheers dave. paul.fr, Sat, 30th Jun 2007

Dave,

re, kitchen science. Is this also the reason why drink machines drop your can on it's side, to dislodge some of the bubbles? paul.fr, Thu, 5th Nov 2009

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