How do we behave in crowds?

11/25/22 • 26 min

1 Listener

As someone who dislikes crowds, listener Graham is curious about them. Crowds gather in all sorts of places, from train stations and football matches, to religious events and protest marches. But is there a science behind how they move and behave? To find out, Anand Jagatia speaks to some actual crowd scientists.

He learns about the psychology of social identity, which influences everything from how close we stand to others to how we react in emergencies. He visits the Athens marathon, and hears about the algorithm that predicts how 50,000 runners will move through a city on race day. And he explores research into the science of riots, which explains why some peaceful crowds turn violent.

Presented and produced by Anand Jagatia

Contributors: Dr Anne Templeton, University of Edinburgh Marcel Altenburg, Manchester Metropolitan University Prof John Drury, University of Sussex

Archive: BBC News Image: Crowd from above. Creidt: Getty Images

Presented and produced by Anand Jagatia

Contributors: Dr Anne Templeton, University of Edinburgh Marcel Altenburg, Manchester Metropolitan University Prof John Drury, University of Sussex

Archive: BBC News Image: Crowd from above. Creidt: Getty Images

Previous Episode

Why don’t we fall out of bed when we’re asleep?

Why don’t we fall out of bed when we’re asleep? That’s the question that’s been keeping CrowdScience listener Isaac in Ghana awake, so presenter Alex Lathbridge snuggles up with some experts to find the answer.

We get a lot of emails about sleep, so we’ve gathered together some of our favourite questions and put them to academics working on the science of snoozing.

We’re wondering why some people laugh in their sleep, why some people remember their dreams and not others, and why we need to sleep at all - can’t we just rest?

Our slumber scholars tell us about how our bodies continue to gather information while we’re asleep, how the tired brain is more likely to remember negative experiences, how we mimic other people in our sleep, and how sleep makes you more attractive to other people. And Alex takes a trip to the zzzzoo to meet some animals that have very different sleep patterns to humans. It’s his dream assignment.

Contributors: Vanessa Hill, University of Central Queensland Professor Russell Foster, University of Oxford Mark Kenward, Drusillas Zoo Park

Presented by Alex Lathbridge Produced by Ben Motley for the BBC World Service

[Image: Man Falling into bed. Credit: Getty Images]

Next Episode

What gives clouds their shapes?

What are the clouds like where you are? When you look upwards can you see great tufts of cotton wool, or do they stretch off into the distance, flat like sheets. Are they dark greys and purples, bringing the promise of rain or maybe there aren’t any at all. For listener John from Lincolnshire in the UK clouds looking up at the clouds is a favourite pastime and he wants to know why they look the way they do and why they are so different from one day to the next.

Join Presenter Marnie Chesterton as we turn our gaze skyward to discover what gives clouds their shape. Join us for a cloud spotting mission with Gavin Pretor-Pinney, founder of the cloud appreciation society as he helps us de-code the shapes across the sky to reveal what they can tell us about our atmosphere. Dr Claire Vincent at the University of Melbourne introduces us to one of the superstars of the cloud world, Hector the Convector to explain where thunderstorms come from. And we learn how people like you can help NASA to understand the clouds better with Marilé Colón Robles project scientist at the GLOBE programme.

Presented by Marnie Chesterton and Produced by Emily Bird

[Image: Dramatic looking clouds. Credit: Getty Images]