Hi Vsauce here and today we are going to talk about why do we have two nostril and …, we have two eyes so we can now the depth of the things we see, we have two ears and so we can estimate the sound we hear, we can localize it but why do we have two nostrils? Can't we smell and know where it is coming from? Well the answer is found by Stanford University, they fund that during the day the one nostril inhale and they might change their position continuously. The other question about it is that what is the smell of the space?
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