We're All Being Pulled Together

The Rest Is Science

Goalhanger

Science, Physics, Mathematics

4.5 • 1K Ratings

🗓️ 25 November 2025

⏱️ 39 minutes

🔗️ Recording | iTunes | RSS

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Summary

What is gravity, really? Why do objects pull towards each other at all? And if Einstein 'fixed' Newton’s theory, why does gravity remain one of science’s biggest unsolved mysteries? A clumsy trip into a lamppost leads Michael and Hannah into a whirlwind tour of our changing understanding of gravity, from falling apples and making wormholes for ants, to the puzzles we still can’t crack. Why does time tick faster on a mountaintop than by the sea? Why are galaxies spinning in ways our equations can’t explain? And could an invisible particle finally reveal what gravity is made of? Join Professor Hannah Fry and YouTube educator Michael Stevens as they uncover the strange, unfinished story of the force that holds the universe together. ------------------- For more information about Cancer Research UK, their research, breakthroughs and how you can support them, visit ⁠cancerresearchuk.org/restisscience⁠ Cancer Research UK is a registered charity in England and Wales (1089464), Scotland (SC041666), the Isle of Man (1103) and Jersey (247). A company limited by guarantee. Registered company in England and Wales (4325234) and the Isle of Man (5713F). Registered address: 2 Redman Place, London, E20 1JQ. ------------------- Find The Rest Is Science all over the internet by ⁠clicking here.⁠ ------------------- Video Producer: Adam Thornton Video & Social: Bex Tyrrell Assistant Producer: Imee Marriott Producer: Becki Hills Senior Producer: Lauren Armstrong-Carter Head of Digital: Samuel Oakley Exec Producer: Neil Fearn Learn more about your ad choices. Visit podcastchoices.com/adchoices

Transcript

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0:00.0	This episode is brought to you by Cancer Research UK.
0:02.8	Imagine this. Inside all of us, billions of cells follow millions of instructions
0:08.9	written in microscopic code. And when a new cell grows, it copies those instructions,
0:14.1	but the smallest error can lead cancer to develop.
0:17.6	Right. And this is the reason why there isn't a single cure for cancer, because, you know,
0:20.9	there are more than 200 different types. Each of them have got different distinct characteristics,
0:26.8	you know, different challenges, different mysteries. And that means that trying to cure cancer isn't
0:31.0	like following a single path. It's like trying to map out an entire forest. That's right. And Cancer
0:35.7	Research UK is the world's largest charitable
0:38.7	funder of cancer research. I mean, their work spans more than 20 countries with over 4,000
0:44.2	scientists, doctors and nurses pushing knowledge forward to save and improve lives worldwide.
0:49.9	You know, over the last 50 years, the work that this charity has done has helped to double cancer survival in the UK.
0:58.8	And you have to think about that is more parents at the dinner table, right?
1:02.2	That is more friends at their birthday parties.
1:04.7	That is more people who are living longer, better lives.
1:07.8	For more information about Cancer Research UK, their research, breakthroughs,
1:12.9	and how you can support them, visit Cancer Research, UK.org, forward slash rest is science.
1:24.7	Hello and welcome to The Rest is Science. I'm Michael Stevens.
1:28.3	And I'm Hannah Frye.
1:29.3	And today I'm asking you, Hannah, when was the last time you fell over?
1:33.3	I mean, I fall over quite a lot. I've got to be honest with you.
1:36.3	I think my limbs are longer than my brain expects them to be, so I get myself in all kinds of trouble.
	...

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