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1st Oct 2006

Science Question and Answer - New Horizons Mission


Chris Smith

Phil Rosenberg

Dave Ansell

Answering all your cosmic conundrums this week are Drs. Chris, Dave and Phil who discuss why blood is red, the size of the ozone hole, how to make magnets, the best way to get rid of excess mucus, and sticking with the gooey theme, Professor Adam Summers from the University of California Irvine discusses how some tarantulas keep a firm hold on the ground by producing sticky silk in their feet. Moving much further away from terra firma, New Horizons scientist Dr Hal Weaver from Johns Hopkins University talks about the mission to Pluto, what they hope to find there and why the Kuiper Belt objects are so intriguing, and in Kitchen Science, Derek Thorne and Hugh Hunt carry out their own launch by throwing engineering textbooks high into the air.

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News

 

Human Surgery in Zero Gravity

Doctors lead by Frances Chief Surgeon Dominique Martin have become the first ever to perform surgery on a human in zero-g. The European Space Agency-backed experiment aimed to prove that zero-g surgery was possible in advance of preparing for long duration spa...

 

Purrfect Pussy

The cat guaranteed to spare you sneezes and wheezes - a US company - Allerca - are marketing a cat which they say will not trigger allergies. The moggies are marketing at $4000 (US) and produce a different form of a genes called Feld1, which is responsible for...

 

'Face on Mars' a Figment of Imagination

Many of you out there will be familiar with the image taken by the Viking 1 spacecraft that appears to show a giant face sculpted into the Landscape of Mars, but new image by the European Space Agency orbiter, Mars Express, have shed new light on the area. All sor...



Kitchen Science

 

What happens when you hurl your homework in the air?

This week Derek is with Professor Hugh Hunt from the University of Cambridge and three student volunteers from the Norwich School. They're going to be throwing books into the air and learning about the science of spin.


Questions

 

Can you please tell me how to stop my body making mucus? I've had dysfunctional Eustachian tubes for seven months, and although they're sometimes on the point of clearing, along comes more mucus and the whole thing starts again. I've been prescribed some nasal spray but it's really depressing not being able to hear people clearly. Why do we need mucus anyway?


 

What are magnets made out of and why are they made?


 

Could you tell me if the ozone hole is now getting smaller since CFCs have been banned?


 

I know cassette tapes are virtually obsolete, but I have a question about them. Very often when I'm listening to my Harry Potter audio books there's a muffling in the background. If I listen very carefully I can hear the other side of the cassette being played. I've tried this out with several different cassettes and different players. Is there a scientific reason behind this or is my brain just going mad?


 

Why is blood red?


 

Can I have a leech for a pet? I am allowed to buy one? If so, where can I buy one?


 

Is it true that some of our senses degenerate and that some of them are more susceptible to damage than others? We see kids wearing glasses but we don't need to use hearing aids until we're very old. What's going on?


 

Who would win a fight between a hippo and a polar bear?


 

How come I sneeze when I stare at the sun in the morning?





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