 Check it out, we are in the kitchen and we are testing our lung capacity. Mads has made a contraption here that enables us to get an idea of our lung volume. Can you explain the idea? Yeah, it's a 5-liter bottle filled with water and markings all the way with 250 milliliters in between. And we flip it over. It's full of water. We put it into a bucket with water in it. Then at the bottom there he opens up the cap. The cap is now off. I'm going to show the details here. There's the cap off. The water stays inside obviously. Then what do you do? We have a tube which we will put inside. He is now putting a tube inside without getting it out of the water. So now the idea is, can you explain the idea? Yeah, the point is just that you displace all the water with your lungs, with the air. However much the air is in the bottle when I'm done blowing up all my air, that will be my lung capacity. It's a pretty cool experiment. The only problem is that the bottle is only 5 liters and we both seem to go a little further than that. Our lung capacity is a little greater than 5 liters. So we should have had like a 7-liter bottle to be able to really measure it accurately. But we're doing it anyway and we're trying to estimate how much our lung capacity is. So let's see if I can put this camera somewhere. All right, so what's going to happen now is Matt is going to inhale as much as he is capable of. 5 liters of water straight into the lungs. And then he's going to exhale into the tube, which will, as Matt explained, fill the bottle with air and displace the water. But we're actually going to go beyond the capacity of the bubbles. We'll have to do some estimation. So try to see all the bubbles that come out and try to estimate how much that is. Yeah. Just do it slowly. And remember to push down at the end. That was good. I think you're just above 5 liters basically. That's how it looks. All right, so we refilled the bottle and did everything and I'm going to do another test here. So obviously, as we just saw with Matt's, it doesn't really tell us exactly our lung capacity, which is pretty annoying. We need a bigger bottle to do that. But at least we know it's greater than 5 liters, but I haven't actually looked up what's the typical average lung capacity. Here's a quick little snippet from an old book by Jack Daniels and some other people. So if a person were to breathe in as deeply as possible and then measure the amount of air that could be forcibly exhaled, the volume measured would be that individual's vital capacity. That's what it's called. It could be considered the greatest tidal volume possible. It varies a great deal with body size, sex, and age, and it could range from about 3 liters in a small person to over 6 liters in a larger individual. Blah, blah, blah. So if that's the case, I guess having a larger than 5 liter vital capacity is pretty good. Yeah, at least not bad for our size and yours. The water is extremely cold. Okay, so we calculated it. It's actually, all the water in this bottle is actually 5 liters and 400 milliliters. Yeah, 5.4 liters. And we both got all that out, and you got maybe, if I were to estimate, as much as 200 milliliters more than that. Yeah, so basically we both have a very large long volume. I don't know. Yeah, no, definitely. We would have to see averages across a lot. Not if 6 liters is a large individual. Yeah, but that's one source. Yeah, but I think that's pretty true though, still. Just bear in mind though that as a runner, having a large long volume, it's not necessarily important. Long volume is not a limiting factor usually when it comes to endurance performance. It's not, unless you have a very small lung volume, you typically just ventilate more. You just breathe more if you have a slightly smaller lung. So it's typically not a limiting factor, but it is nice to know that I have pretty large lungs. Anything else? No, this is Matt's laboratory, by the way. Check it out. He has a lab here in the kitchen where he does different experiments. Yeah, he is weird. He is indeed weird in the cool way. All right, thanks for watching. Bye.