The LED Lighting Revolution

The Naked Scientists Podcast

Dr Chris Smith

Natural Sciences, Science, Science Radio, Naked Scientists, Health & Fitness, Engineering, Medicine, Technology, Life Sciences

4.6 • 958 Ratings

🗓️ 24 January 2017

⏱️ 55 minutes

🔗️ Recording | iTunes | RSS

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Summary

The light bulb is a hundred-year-old technology whose time is finally up. This week, we shine a little light on its replacement to find out what makes it such a compelling alternative and look to the next revolution in lighting. Plus, how scientists are turning to robotics to treat heart failure, the death of NASA astronaut and last man on the Moon, Gene Cernan and do you really eat spiders in your are sleep? Like this podcast? Please help us by supporting the Naked Scientists

Transcript

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0:00.0	I have you loud and clear.
0:03.2	Hello.
0:04.2	Hello.
0:05.2	Welcome.
0:06.2	Science.
0:09.2	And that is the same physics, medicine, nature, space, time, brain, life, the universe.
0:16.4	Hello, this week we're shining a light on LEDs.
0:20.4	How do they work?
0:21.2	Why do we need them? And how are we going to light up our homes in the future?
0:25.6	Plus snacking on spiders a new robot to treat heart failure and burning batteries.
0:31.8	I'm Grey Jackson. I'm Chris Smith and this is the
0:35.5	Naked Scientist. The Naked Scientists podcast is powered by UKfast.co. UK.
0:41.3	UK. UK.
0:44.0	First, 40 million people are affected worldwide by heart failure.
0:52.0	This is where the heart muscle is
0:53.8	disease and cannot pump sufficient amounts of blood. It's very debilitating and
0:58.2	it robs sufferers of their quality of life. At the moment the only long-term effective solution is a transplant, but only a tiny
1:06.4	minority of people are lucky enough to receive one.
1:09.9	This has prompted researchers to develop gadgets called ventricular assist devices that can be
1:14.7	plumbed into the heart to help it to pump, but they're not without problems.
1:19.1	Now, Ellen Roach has designed a much better one, which fits around the heart like a glove.
1:25.0	So this is a sleeve made of a rubber with embedded balloons that can contract and beat with the heart to help the heart to pump
	...

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