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Kinetic Molecular Theory and its Postulates

Professor Dave here, let’s learn about kinetic molecular theory. We have learned about different laws that can be applied to ideal gases. Like any laws, these ideal gas laws are merely summaries of observations, such as the way pressure and volume are inversely proportional, or the way volume and temperature are directly proportional. We observe […]

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The Presocratics: Crash Course History of Science #2

Long ago, some philosophers worked very hard to separate myths from what they actually knew about nature. Thales theorized that everything in the world is made of water. Pythagoras was a mathematical-mystical vegetarian. And Democritus, we all know and love as the Atom Guy… Meet the Presocratics! [Intro Music Plays] The Presocratics were named for […]

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5 Times Scientists Were Very Wrong About New Discoveries, Because of Hope

[♪ INTRO ] The scientific method — it’s what makes the world go round. Not literally. But it’s how we understand the universe. Scientists are constantly developing and testing hypotheses, which means a lot of ideas…especially seemingly revolutionary ones…get debunked and go nowhere. But scientists are human, too. So every once in a while, some […]

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