2007 Series

The Naked Scientists: Science Radio & Science Podcasts

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24th Jun 2007

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


Chris Smith

Kat Arney

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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News

Backing up your Immune System - On Ice

A UK-based company, LifeForce, are offering an "immune system backup" facility whereby they store white blood cells collected when an individual is healthy so that they can be reinfused to restore the immune system later in life following a disease, such as cancer, treatment for which...

It’s true – big sisters are smarter…

Here’s some news that confirms what our Dr Kat has suspected for some time – the oldest child in a family is likely to have a higher IQ than his or her siblings.  A Norwegian team found that first born children, or those who had lost their elder siblings and therefore become the oldest, scored ...

Rabies-based Trojan Horse to Smuggle Drugs into the Brain

Harvard Scientists have tamed one of nature's nastiest pathogens by turning part of the rabies virus into a powerful therapeutic tool. Manju Swamy and his team borrowed the surface coat of the virus to produce the molecular equivalent of a Trojan Horse capable of smuggling drugs and other molecules ...

Parkinson’s progress

A study in the latest edition of the Lancet suggests that a new gene therapy might be a safe and effective way to stave off the symptoms of Parkinson’s disease.  A dozen patients with advanced Parkinson’s have been treated over three years in the small-scale trial, led by Andrew Feigin of the F...

Mirror Mirror on the Moon

Space scientists have come up with a way to make a moon-based telescope 1000 times more powerful than Hubble. But unlike traditional telescopes their's uses a liquid as its mirror. The idea relies on gravity deforming the liquid, when it is spun, into the perfect mirror shape. But the key breakthoug...


Kitchen Science

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Coke Can Eruption

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


Interviews

It's GigaCurtains for us!

Joel Veitch of Rathergood.com with his suggestion for measuring risk using the unit the 'Curtain'.

How Dinos Died - Meteorites, Flood Lava and Supervolcanoes

Janet Sumner discusses how the meteorite we're familiar with may have just been the straw that broke the dinosaur's back

Deep Quake

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

Poisoned Land - Arsenic in Argentina

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

Science Update - Health

This week, Chelsea and Bob update us with some news about the sound of muscles and treating depression with yoga.


Questions

Why do we use carbon dioxide to make drinks fizzy? Why not air, or some other gas?


Why is it that when beer has gone flat, the fizz seems to come back when you add some salt? It there a chemical reaction at work?


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 then a phone?


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 but I don’t know – 15 minutes seemed like a short time to get to the blood. What is it and what does it bring out??


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



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 - 29th Jun 07

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 ...
- daveshorts - 29th Jun 07

excellent, cheers dave....
- paul.fr - 30th Jun 07
Whole Thread | Post Reply



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