Stripping down science, the naked scientists.

The Naked Scientists. Now how can my voice here in Cambridge reach you at home? This week we're exploring the

science and the technology of radio broadcasting, finding out how a sound that originates in my throat,

gets captured, converted and then beamed around the world.

We will also delve into digital radio to find out how it differs from FM and we'll hear about a new

breakthrough in gene therapy for irregular heartbeats. Plus have a listen to

this. This is Dave shouting very loudly at a capacitor-based microphone.

We've been making our own microphones to see how they work and we'll show you how we did it very shortly.

The Naked Scientists Podcast is powered by UK Fast,

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UK.

And this is the Naked Scientist with me Chris Smith and also with Ben Vausler.

Hello if you would like to get in touch with us you can tweet at naked

scientists you can comment at Facebook.com slash the naked scientists or email Chris at the naked scientists dot com

now this week the world celebrated sound engineers day but can you guess what day

this was well it was on 12, 12, of course, or 1-2, 1-2, 1-2.

Now joking aside, behind the thousands of broadcasts that are happening all around the world at any one moment, there's an invisible army of engineers who make the whole process happen so that sound waves leaving a presenter's mouth can be captured, converted into electromagnetic signals,

beamed through the air and then picked up by your radio so that you can listen.

And to find out how, we're joined now by John Adamson, who's the BBC Production Editor for London and the

Southeast, and he's known colloquially as the Digital Doctor, Helladoc.

Oh, good evening to you.

Good evening, John.

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