Before you listen to this BBC podcast, I'd like to introduce myself.

My name's Stevie Middleton and I'm a BBC Commissioner for a Load of Sport Podcasts.

I'm lucky to do that at the BBC because I get to work with a leading journalist, experienced

pundits and the biggest sport stars.

Together we bring you untold stories and fascinating insights straight from the players'

mouths.

But the best thing about doing this at the BBC is our unique access to the sport in world.

What that means is that we can bring you podcasts that create a real connection to

dedicated sports fans across the UK.

So if you like this podcast, head over to BBC Sounds where you'll find plenty more.

BBC Sounds, Music, Radio, Podcasts.

Thanks for downloading this episode of In Our Time.

There's a reading list to go with it on our website and you can get news about our programs

if you follow us on Twitter at BBC In Our Time. I hope you enjoyed the programs.

Hello, PSYM on that place was a giant in the world of mathematics, either side of the French Revolution.

He addressed one of the great questions of his age, raised but not answered by Newton,

was the solar system stable or would the planets crashing to the sun or even spin away.

He advanced ideas on probability, long the preserve of gambling and pushed them out across

into science and he posed his own startling question. If you knew how many particles there were

in the universe, could you predict the future?

When we discuss PSYM on the plaza, our markets are so toy,

Simone Professor for the Public Understanding of Science and Professor of Mathematics at the

...