Magnetism: Crash Course Physics #32
This episode was sponsored by Prudential. Go to http://Raceforretirement.com and see how quickly 1% can add up. You're probably familiar with the basics of ...
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This episode is supported by Prudential. So it’s Friday, April 21, 1820. A physics professor in Denmark named Hans Christian Oersted is in the middle of a lecture, and he’s using a compass and an electric wire for a demonstration. He turns on the current that runs through the wire, and he notices that the needle in the compass starts to move. And when he turns the current off, the needle moves back to where it was. Then, he runs the current through the wire in the opposite direction, and sees the needle move the other way. What Oersted demonstrated that day was a fundamental discovery: the connection between electricity and magnetism. And it changed the field of physics forever. The relationship between electricity and magnetism not only explains what Oersted and his students witnessed i...
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This episode is supported by Prudential. So it’s Friday, April 21, 1820. A physics professor in Denmark named Hans Christian Oersted is in the middle of a lecture, and he’s using a compass and an electric wire for a demonstration. He turns on the current that runs through the wire, and he notices that the needle in the compass starts to move. And when he turns the current off, the needle moves back to where it was. Then, he runs the current through the wire in the opposite direction, and sees the needle move the other way. What Oersted demonstrated that day was a fundamental discovery: the connection between electricity and magnetism. And it changed the field of physics forever. The relationship between electricity and magnetism not only explains what Oersted and his students witnessed i...
