why clorets, right? so every time we take a breath, you're breathing other people, and then when you breathe out, you're breathing out some of those people and you're also breathing the most important person in the whole universe and who's that? yourself. so some of your self is all around the atmosphere. you guys know that? now, let's do a little calculation. how many atoms are in your lungs at any moment with a normal-size breath? it turns out to be about 10 to the 22 atoms. that's one followed by 22 zeros, 10 to the 22 atoms in your lungs at any moment. get this, if you consider how many breathfuls of air are in the whole world, guess what the number turns out to be? 10 to the 22. 10 to the 22, so you know what that means, gang? there are as many breaths of air in the world as there are atoms in your lungs at any moment. how do we know how many breaths of air in the world? well, what you do is you calculate the area of the world. you guys know what the area of a ball the area of a sphere? anyone happe