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TED Talks Daily

The brilliance of bridges and roads that repair themselves | Mark Miodownik

TED Talks Daily

TED

Society & Culture, Ted, Ted Talks Daily, Ted Podcast, Ted Talks

4.1 β€’ 12.1K Ratings

πŸ—“οΈ 9 February 2026

⏱️ 12 minutes

🧾️ Download transcript

Summary

Your skin heals after a scratch. What if our roads, bridges and cities could self-repair after getting damaged, too? Scientist and engineer Mark Miodownik describes a new class of materials β€” animate matter β€” with the potential to sense damage, self-heal and even biodegrade when the job is done. Humanity's next great leap isn't making more stuff, he says β€” it's making stuff that doesn't fall apart.



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Transcript

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0:00.0

You're listening to TED Talks Daily, where we bring you new ideas to spark your curiosity

0:11.3

every day. I'm your host, Elise Hew. Over the thousands of years of human existence, we've come

0:17.6

to master the art of making things, but we haven't gotten quite so good at taking care of the things we make.

0:25.7

So how do we do that?

0:27.1

Taking inspiration from nature's ability to heal and adapt,

0:31.0

Materials scientist Mark Miodovnik envisions a future of animate

0:35.5

materials that can self-repair, self-recycle, and even self-grow.

0:42.0

It's a possibility that could revolutionize our infrastructure and reduce waste.

1:00.4

If you come and visit me in London, you'll see streetscapes a bit like this.

1:06.5

Hey, it's Elise here, and I want to quickly describe the image that just came up on the screen behind Mark.

1:09.1

It's a shot of a street in London. You see the iconic red telephone box with the glass windows,

1:14.0

concrete sidewalk, a road on one side and businesses on the other, one with a blue facade.

1:20.6

There are a few people walking by in coats.

1:23.9

And if you see the world through my eyes, you'd see this.

1:29.8

Mark has changed the slide, and we see the same picture,

1:32.9

but this time it's got lots of annotations and markings on it.

1:36.7

He has circled the various materials in the image,

1:40.2

glass, concrete, asphalt, and he's named them.

1:43.4

We see words like steel, rubber, tarmac, wood, PVC, and more.

1:50.2

Don't pity me, okay?

1:52.6

I love this stuff.

1:54.9

We just make so many amazing materials as humans.

...

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