2006 Series

The Naked Scientists: Science Radio & Science Podcasts

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29th Jan 2006

Meteorites, Satellites and Avoiding Asteroids


Chris Smith

Phil Rosenberg

This week we look to the solar system as Dr Ian Sanders from Trinity College Dublin discusses where meteorites come from and how we can find them, real-life astronaut Dr Stan Love joins us from NASA's Johnson Space Centre in Houston to describe a method of avoiding Armageddon asteroids, Dr Maggie Aderin from Science Innovation Ltd. takes us from meteorites to meteorology, as she talks about satellites that monitor wind speeds, Dr Richard Preece from Cambridge University recounts the sticky tale of the hitch-hiking snails and Derek and Dave make water fibre optics in Kitchen Science.

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News

 

The Think-jet Printer

Scientists invent a way to 'print' live brain cells - Reconstruction and replacement of defective body parts may have moved a step closer this week thanks to an invention from UK researchers at the University of London who have designed a printer that can spit...

 

Cracking The Surface of Mars

Phil Christienson of Arizona State University has designed a new spacecraft in the running to be launched to Mars to search for water ice concealed below the surface. Setting it apart from the other possible mission plans is its ingenious method for searching ...


Questions

 

I was just wondering what grenades are made out of, and why does it take a while to go off after the pin is taken out?


 

Do asteroids have a maximum speed or do they keep accelerating?


 

How dependent are we on satellites? If somebody put a computer bug in them, what would happen?


 

I look out of my window and see something that appears to be a satellite. It rises in the sky through the night. It appears to flash. Is it a satellite?


 

Why did we send dogs into space?



Kitchen Science

 

Water Fibre Optics

Use a bottle of water and a torch to bend light around corners, and find out what this has to do with the internet.



Fact or Fiction

The most frequently broken bone in the body is the wrist
TrueTrue
Malaria is the commonest disease in the world
TrueTrue
The jugular is an artery in the neck
TrueTrue
The blue whale has the longest gestation period (the time it takes a baby to grow) out of the mammals
TrueTrue
The commonest UK bird is the blue tit
TrueTrue
Silk worms eat blueberry bushes
TrueTrue



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