Do Those Pollution Masks Really Work?

The Naked Scientists Podcast

Dr Chris Smith

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

4.6 • 960 Ratings

🗓️ 3 April 2017

⏱️ 56 minutes

🔗️ Recording | iTunes | RSS

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Summary

The Naked Scientists are joined by cosmologist Andrew Pontzen, biologist Sarah Shailes, neuroscientist Philipe Bujold and biochemist Sarah Madden to pit their wits against your science questions. This week, find out how venus fly traps work, whether psychologists can read your mind and why there is so much variation in herbivore poo. 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.
0:03.4	Hello.
0:04.4	Hello.
0:05.4	Welcome.
0:06.4	Science and that is the same physics, medicine, nature, or space, time, brain, life, the universe.
0:16.5	This week, why does sucking a mint make your mouth feel cold?
0:20.8	How does a Venus fly-trap work? And is the universe in an endless spiral of
0:25.6	creating and destroying itself? We're taking on the science questions that you have
0:30.8	been sending in. I'm Chris Smith and this is the Naked
0:34.4	Scientists. The Naked Scientists podcast is powered by UKfast.co.uk. Well let's meet the team of people who are going to answer your questions for you
0:49.7	this week.
0:50.7	Andrew Ponson is a show regular, he's from UCL, and he's a cosmologist that means he knows about
0:54.9	dark matter black holes and that sort of thing. How are you, Andrew?
0:57.8	I'm very well. And have you got a mind-bending fact for us this week?
1:00.8	I do. I was doing a lecture recently. I did a little
1:03.7	calculation to tell the audience. Suppose you take everything that we can see
1:07.9	throughout space, the whole observable universe, and you scale it down, you make a
1:12.3	scale model that fits inside London, pretty big city.
1:17.2	How big do you think our solar system would be?
1:19.6	That's the sun, the planets, you know, all the stuff that's sort of nearby.
1:23.0	Well, goodness, you're asking me that question.
1:25.0	Well, how big do you think it might be?
	...

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