Could Sound Make You Levitate?

The Rest Is Science

Goalhanger

Science, Physics, Mathematics

4.5 • 1K Ratings

🗓️ 8 January 2026

⏱️ 34 minutes

🔗️ Recording | iTunes | RSS

🧾️ Download transcript

Summary

Imagine: a series of objects floating in midair without magnets, strings or visible supports. With acoustic levitation sound waves alone can suspend droplets, beads and even small solids to seemingly defy gravity! In this episode of Field Notes, Hannah shows Michael this astonishing device, revealing how precisely tuned sound can manipulate matter. Behind the mesmerising floating objects lies a combination of physics, mathematics, and engineering that turns vibrations into invisible hands. How do sound waves create stable points in space? What can acoustic levitation teach us about controlling particles, studying delicate chemical reactions, or even exploring new materials? And why does watching something float so effortlessly feel like glimpsing...a little magic? Welcome to The Rest Is Science: Field Notes. Every Thursday, Hannah and Michael rummage through their personal troves of scientific treasure and source discoveries that explain our understanding the universe, oddities that scramble our brains, objects that hint at forces we’ll never see...and a few things that are essentially just plain cool. Expect deep dives into the science behind each pick, the spark that grabbed their attentions, and the sheer delight they get from sharing it all with you. They’ll also be tackling your questions, so email The Rest Is Science at therestisscience@goalhanger.com. You can watch the Pitch Feed experiment live, here. ------------------- For more information about Cancer Research UK, their research, breakthroughs and how you can support them, visit ⁠⁠https://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 ThorntonVideo & Social: Bex TyrrellAssistant Producer: Imee MarriottProducer: Becki HillsSenior Producer: Lauren Armstrong-CarterHead Of Digital: Samuel OakleyExec 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.
0:02.9	Dinosaurs walked the earth 180 million years ago.
0:07.1	But you know, cancer was part of their story too.
0:10.2	Scientists have found tumors in ancient fossils.
0:13.2	Well, that is part of the reason why cancer is a big, big part of our story, right?
0:18.2	It's the other side of evolution.
0:19.9	It's the most complex disease
0:21.6	that we face. There are more than 200 types of cancer in total, each with distinct
0:25.9	characteristics, challenges, and mysteries. And that complexity demands scale. Cancer Research,
0:32.0	UK, is the world's largest charitable funder of cancer research, with more than 4,000 scientists,
0:38.8	doctors, and nurses working across more than 20 countries in the search for answers. And then sharing their
0:44.1	discoveries beyond borders. And the impact of this collaboration is clear, because over the last
0:48.2	50 years, the charity's pioneering work has helped to double cancer survival in the UK. That is more people who are living
0:55.9	longer, better lives. Fossils can show us the past, but research is shaping the future. And for more
1:03.3	information about Cancer Research UK, their research, breakthroughs and how you can support them,
1:09.1	visit cancerresearchuk.org forward slash rest is science.
1:14.4	Why do growing businesses love working in Slack? Let's ask Christia Ari Bikes. Running things in Slack
1:20.2	saves me so much time. AI summaries save 97 minutes per week. What say you? Rocks from Gosney. Slack
1:27.1	helps us build community. Slack helps us build community.
1:28.3	It helps us build connection.
1:29.6	Your partners, vendors and customers all in one place.
1:32.7	Take us on home, Ashley from Carraway.
	...

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