Why Do We Have Two Nostrils?
LINKS: http://www.twitter.com/tweetsauce http://facebook.com/VsauceGaming music by: http://www.youtube.com/JakeChudnow Sound localization: http://www.diracdelta.co.uk/science/source/d/u/duplex%20...
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Hey, Vsauce. Michael here. And our faces have a lot of holes. We have two ears and two eyes. It makes sense, because the difference in time it takes for a sound to reach one ear and the other, allows us to localize where the sound is coming from. And having two eyes gives us two slightly different perspectives that we can put together in order to perceive depth. But why do we have two nostrils? I mean, our sense of smell isn't good enough to localize one nostril over the other, why not just have a big hole in our nose, like we have a mouth. Well, Stanford University's olfactory research project investigated this and they found that throughout the day one nostril inhales air better and faster than the other. Now, which one is dominant chang...
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Hey, Vsauce. Michael here. And our faces have a lot of holes. We have two ears and two eyes. It makes sense, because the difference in time it takes for a sound to reach one ear and the other, allows us to localize where the sound is coming from. And having two eyes gives us two slightly different perspectives that we can put together in order to perceive depth. But why do we have two nostrils? I mean, our sense of smell isn't good enough to localize one nostril over the other, why not just have a big hole in our nose, like we have a mouth. Well, Stanford University's olfactory research project investigated this and they found that throughout the day one nostril inhales air better and faster than the other. Now, which one is dominant chang...
