Self-Healing Materials

Discovery

BBC

Science

4.3 • 1.2K Ratings

🗓️ 9 December 2013

⏱️ 29 minutes

🔗️ Recording | iTunes | RSS

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Summary

Quentin Cooper takes a look at the new materials that can mend themselves. Researchers are currently developing bacteria in concrete which, once awakened, excrete lime to fill any cracks. In South America you can choose a car paint that heals its own scratches. And there are even gold atoms which can migrate to mend tiny breaks in jet turbine blades.

Engineers normally design things so the likelihood of breaking is minimised. But by embracing the inevitability of breakage, a new class of materials which can mend cracks and fissures before you can see them may extend the lives of our cars, engines, buildings and aeroplanes far beyond current capability.

(Image: Presenter, Quentin Cooper, BBC Copyright)

Transcript

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0:00.0	Choosing what to watch night after night the flicking through the endless
0:06.8	searching is a nightmare we want to help you on our brand new podcast off the
0:11.8	telly we share what we've been watching
0:14.0	Cladie Aide.
0:16.0	Load to games, loads of fun, loads of screaming.
0:19.0	Lovely. Off the telly with me Joanna Paige.
0:21.0	And me, Natalie Cassidy, so your evenings can be a little less
0:24.9	searching and a lot more watching listen on BBC sounds. Choosing what to
0:32.1	watch night after night the flicking through the endless
0:36.5	searching is a nightmare we want to help you on our brand new podcast off the
0:41.5	telly we share what we've been watching.
0:43.7	Cladie Aide!
0:45.7	Loads of games, loads of fun, loads of screaming.
0:48.2	Lovely.
0:49.0	Off the telly with me Joanna Paige.
0:51.2	And me, Natalie Cassidy, so your evenings can be a little less
0:54.7	searching and a lot more watching listen on BBC sounds. Choosing what to
1:01.8	watch night after night the flicking through the endless
1:06.2	searching is a nightmare we want to help you on our brand new podcast off the
1:11.2	telly we share what we've been watching.
1:13.5	Cladiyated!
1:15.5	Loads of games, loads of fun, loads of screaming.
	...

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