CrowdScience

Does my equator look big in this?


Listen Later

Scales don’t come planet-sized, so answering a question from David in Ghana may require some ingenuity, after all, calculating the weight of the Earth is a huge task.

Using a set of weighing scales and a 400 year-old equation, Marnie Chesterton attempts to find out just how much the Earth weighs and is it getting heavier or lighter over time?
But how would a planet gain or lose mass? Which tips the scales: meteorites falling from space or gases constantly escaping from our atmosphere?
And does the answer have any implications for the future of Earth? Could the atmosphere eventually run out?
Contributors:
Anuradha TK, former project director at ISRO
Matt Genge, geologist at Imperial College London
Jon Larsen, researcher at the University of Oslo
Anjali Tripathi, astrophysicist
Ethan Seigel, journalist and astrophysicist

Presented by Marnie Chesterton.

Produced by Caroline Steel for the BBC World Service.

[Image: Earth on scales. Credit: Getty Images]

...more
View all episodesView all episodes
Download on the App Store

CrowdScienceBy BBC World Service

  • 4.7
  • 4.7
  • 4.7
  • 4.7
  • 4.7

4.7

424 ratings


More shows like CrowdScience

View all
In Our Time by BBC Radio 4

In Our Time

5,441 Listeners

The Documentary Podcast by BBC World Service

The Documentary Podcast

1,802 Listeners

The Naked Scientists Podcast by The Naked Scientists

The Naked Scientists Podcast

595 Listeners

Global News Podcast by BBC World Service

Global News Podcast

7,615 Listeners

Science Weekly by The Guardian

Science Weekly

419 Listeners

6 Minute English by BBC Radio

6 Minute English

1,751 Listeners

Learning English Conversations by BBC Radio

Learning English Conversations

1,079 Listeners

Science In Action by BBC World Service

Science In Action

342 Listeners

More or Less: Behind the Stats by BBC Radio 4

More or Less: Behind the Stats

892 Listeners

Discovery by BBC World Service

Discovery

967 Listeners

The Infinite Monkey Cage by BBC Radio 4

The Infinite Monkey Cage

2,090 Listeners

Newshour by BBC World Service

Newshour

1,039 Listeners

In Our Time: Science by BBC Radio 4

In Our Time: Science

724 Listeners

The Life Scientific by BBC Radio 4

The Life Scientific

234 Listeners

Unexpected Elements by BBC World Service

Unexpected Elements

356 Listeners

BBC Inside Science by BBC Radio 4

BBC Inside Science

405 Listeners

The Inquiry by BBC World Service

The Inquiry

756 Listeners

Curious Cases by BBC Radio 4

Curious Cases

763 Listeners

People Fixing the World by BBC World Service

People Fixing the World

246 Listeners

13 Minutes Presents: The Space Shuttle by BBC World Service

13 Minutes Presents: The Space Shuttle

4,197 Listeners

Americast by BBC News

Americast

699 Listeners

You're Dead to Me by BBC Radio 4

You're Dead to Me

2,981 Listeners

The world, the universe and us by New Scientist

The world, the universe and us

107 Listeners