4.8 • 17.9K Ratings
🗓️ 13 May 2016
⏱️ 43 minutes
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0:00.0 | Hello and welcome to another episode of No Such Thing as a Fish, a weekly podcast coming |
0:18.4 | to you from the QI offices in Covent Garden. |
0:21.0 | My name is Dan Schreiber, I'm sitting here with James Harkin, Andy Murray and Aniches |
0:25.4 | Innski. |
0:26.4 | Once again we have gathered around the microphones with our four favourite facts from the last |
0:30.0 | seven days and in no particular order here we go. |
0:33.8 | Starting with you, Andy Murray. |
0:36.4 | My fact is that when you are 30 metres underwater your lungs are only a quarter of their normal |
0:41.2 | size. |
0:42.2 | That is incredible. |
0:43.7 | Yeah. |
0:44.7 | How? |
0:45.7 | What's, because there's not enough air in them? |
0:48.2 | Well, there's the same number of molecules if you just take one lungful and then you dive |
0:53.4 | down but the water pressure on them is much higher meaning that you're lung strength. |
0:58.1 | So if you're at sea level, all the air above you, if you imagine a column of air stretching |
1:02.4 | all the way up to the edge of the atmosphere, one square inch of that column would weigh |
1:07.4 | 14.7 pounds, right? |
1:10.0 | So we say the pressure, the air pressure at sea level is 14 pounds per square inch, 14.7. |
1:15.4 | It is amazing actually to think all of that air pushing down on you whenever you're walking |
1:19.3 | down the street. |
1:20.3 | Yeah, wow. |
... |
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