Placeholder Image

字幕表 動画を再生する

  • What are these people inhaling?

  • And why is it making their voices sound so deep?

  • What would happen if this stuff was in our atmosphere?

  • This is what if and here's what would happen if the atmosphere was 10% deep.

  • Voice gas.

  • Sulphur, hexafluoride.

  • Now that's a mouthful Shoes.

  • It's more commonly known as S F six or deep voice gas because lower frequency of your voice heard about a bridge.

  • I know what a girl sound like, But sulphur hexafluoride isn't just a expensive party trick.

  • It's an extremely potent greenhouse gas that's five times heavier than air.

  • Its density explains why your voice drops if you breathe it in, but inhale too much of it, and it won't just be your voice that gets deeper.

  • Sulphur hexafluoride is a non toxic gas, but if it were to suddenly comprise 10% of our atmosphere, we croak.

  • Not literally.

  • For the most part, our atmosphere is made up of 21% oxygen and 78% nitrogen.

  • Humans need an atmosphere that's roughly 19.5% oxygen to breathe normally.

  • So if we were to replace 10% of the oxygen in our atmosphere with sulphur hexafluoride.

  • We'd be left with an oxygen level of 18.9% which is actually still enough for us to live.

  • But here's the problem, because S F six is five times heavier than air.

  • When you breathe it in, it compresses the lighter oxygen in your lungs.

  • This, in turn, reduces the amount of oxygen making it into your bloodstream, which means you'll eventually pass out falling prey to asphyxiation.

  • Our planet wouldn't fare much better.

  • Sulphur hexafluoride has a global warming potential that's approximately 22,200 times greater than carbon dioxide over a 100 year period, and it can live in our atmosphere for as many as 3200 years.

  • And yet it's often used as an electrical insulator in components that are susceptible to leaks.

  • In fact, studies show that 15% of equipment containing S F six will develop leaks and for a little context, just one kilogram of S F six has the same warming effect as 24 people flying from London to New York and back again.

  • But despite the danger, the number of components using s F six is expected to increase 75% globally by 2030.

  • Fortunately, our atmosphere will never have 10%.

  • S f six Living in that kind of world would require a complete redesign of our lungs and a major leap in evolution.

  • But life on Earth has gone through unbelievably fortunate turns of fate.

  • Evolution has given us eyes, arms and intelligence and has overcome the danger of near extinction.

  • So it's not impossible that life wouldn't adapt to such a drastic change.

  • That's something that blew my mind in the documentary Siri's Leaps in Evolution, which you can watch on curiosity stream dot com.

  • We'll get back to the story in a second.

  • But in case you don't know, Curiosity Stream is a video streaming service with thousands of other award winning documentaries.

  • And the good news is that as a what if viewer, you get the 1st 30 days completely free.

  • Yep, free.

  • And after that it's just 2 99 a month, or just 1999 a year.

  • It's pretty amazing, and it's the best place to dive deeper into the topics we cover on this channel.

  • All you have to do is sign up at curiosity stream dot com slash What if and use the promo code.

  • What if, during the sign up process, come to think of it, there is one creature that could possibly survive in an atmosphere that's 10% deep voice gas that's the mighty eight legged tar degrade.

  • These near microscopic critters can live in ridiculous extremes, including being able to survive supernova blasts and gamma ray bursts.

  • But what are the odds of one of those happening anytime soon?

  • Well, that's a story for another.

  • What if?

What are these people inhaling?


動画の操作 ここで「動画」の調整と「字幕」の表示を設定することができます

B1 中級

大気が10%の六フッ化硫黄だったら? (What If the Atmosphere Was 10% Sulfur Hexafluoride?)

  • 1 0
    林宜悉 に公開 2021 年 01 月 14 日