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How do you balance on a bicycle?
CrowdScience
Apr 29, 2022

How do we stay up when we ride a bicycle? Lots of us can do it without even thinking about it, but probably very few of us can say exactly HOW we do it. Well, CrowdScience listener Arif and his children Maryam and Mohammed from India want to understand what’s going on in our heads when go for a cycle, and how we learn to do it in the first place.

Presenter Marnie Chesterton is on the case, tracking down a neuroscientist studying how our brains and bodies work together to keep us balanced whether we’re walking or trying to ride a bicycle. She learns about the quirks of bicycle engineering from researchers in the Netherlands who are part of a lab entirely devoted to answering this question. In the process falling off of some unusual bicycles and uncovering the surprising truth that physics might not yet have a proper answer. And we peer deeper into our brains to find out why some memories last longer than others, whether some people can learn quicker than others and the best way to learn a new skill.

Presented by Marnie Chesterton and Produced by Emily Bird for the BBC World Service.

Featuring: Kathleen Cullen, Johns Hopkins University, USA Jason Moore, University of Technology Delft, The Netherlands Lara Boyd, University of British Columbia, Canada Rado Dukalski, University of Technology Delft, The Netherlands Josie and Freesia, Pedal Power

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When will the next super-volcano erupt?

Is the world sitting on a ticking time bomb? CrowdScience listener Christel recently watched a documentary about a volcanic eruption in 536 AD that left her native Sweden under a cloud of ash for three years. It got her thinking, do we know when this could happen again?

With more than 300 volcanoes – and 24 of them listed as currently active – the Philippines is a country where trying to predict eruptions has huge real world consequences.

Presenter Anand Jagatia travels to Manila to meet the scientists at PHIVOLCS, the Philippine Institute of Volcanology and Seismology, including the head of their Volcano Monitoring and Eruption Prediction Division, Mariton Antonia Bornas, to find out how they try to predict volcanic activity in the country and help make sure communities are evacuated out of harm’s way.

He travels with the team to Taal volcano, which experienced violent eruptions in 2020 and has been active again this year, to visit the observatory monitoring for signs of future activity and to hike to the main crater of the volcano with resident volcanologist Paolo Reniva.

He also speaks to Dr George Cooper from Cardiff University in the UK about what makes a volcano a supervolcano, and to ask the all important question of if we know when this will happen again.

Presenter: Anand Jagatia

Producer: Dan Welsh

Editor: Ben Motley

(Photo: Smoke Emitting From Volcanic Mountain Against Sky - stock photo -EyeEm Mobile GmbH via Getty Images)


29min 05sec




How do you balance on a bicycle?

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