Science Podcasts

Ask the Naked Scientists episode

Fri, 14th Mar 2008

The Science of Sat-Navs and Magic of microwaves!

microwave telecommunication tower (c) Tony Wills

On this weeks Ask the Naked Scientists we investigate the science of sat-navs - how do they work? And how do they know where our speed cameras are? We find out why itís so hard to get a signal on our mobile phones when we're underground and whether the light from stars changes as it reaches our eyes.

We also discover why insects arenít stung by stinging nettles, reveal if water really does flush the other way in the Southern hemisphere and find out the real reason why we canít use our mobiles on planes.

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