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Hello I'm John and I'm calling the crowd science team at the BBC World Service from Kampala in Uganda with a question.

I would like to know something about electricity.

Can we tap it from lightning?

Is it possible to get usable electricity from a lightning strike?

Thanks John. Now long-term listeners will remember that we tackled this query in our very first edition of

crowd science on the BBC World Service. Well now we're back, revisiting this topic as we've

had some excellent follow-up questions in the email inbox.

But before we answer these, let's go back to what John was asking about originally.

In true crowd science style, as the show that takes your questions

about life, Earth and the universe to experts hunting for answers all over the world,

our first job was to get on the road and find some lightning scientists.

I'm Marnie Chesterton, I can't say my name. That's Marnie Chesterton. I'm producer Jen. And we're on a

mission to answer John's question, can we collect electricity from lightning?

Where are we heading, Jen?

...