The Physics of Heat: Crash Course Physics #22
Have you ever wondered why we wear clothes? I mean, beyond the obvious. Why does wearing a jacket in the cold keep your warmer? What is happening to all ...
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Have you ever thought about why we wear clothes? There are people who don't wear clothes, of course. But most of us do, and it’s not just because of modesty, or a fear of getting arrested for indecent exposure. You might be perfectly comfortable in just a T-shirt and shorts, but take them off, and eventually you’ll probably start to feel cold. Walk around your house naked for a while -- in the interest of physics, you understand -- and you’ll see what I mean. That chill you’ll start to feel is all because of the flow of heat. [Theme Music] In thermodynamics, there are a few different ways to describe the kinetic energy of a system. We’ve already talked about one of them: temperature -- the measure of the average kinetic energy of each individual molecule in a substance. Another ...
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Have you ever thought about why we wear clothes? There are people who don't wear clothes, of course. But most of us do, and it’s not just because of modesty, or a fear of getting arrested for indecent exposure. You might be perfectly comfortable in just a T-shirt and shorts, but take them off, and eventually you’ll probably start to feel cold. Walk around your house naked for a while -- in the interest of physics, you understand -- and you’ll see what I mean. That chill you’ll start to feel is all because of the flow of heat. [Theme Music] In thermodynamics, there are a few different ways to describe the kinetic energy of a system. We’ve already talked about one of them: temperature -- the measure of the average kinetic energy of each individual molecule in a substance. Another ...
