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Electromagnets – electricity and magnets

By |2018-05-31T11:49:20+00:00August 16th, 2017|History|

An electromagnet from inside a stereo speaker In the early 1800s AD, about 200 years ago, scientists in Denmark and Britain figured out another way to make magnets. This way you didn't need a lodestone. You could also make much stronger magnets. And you could turn the magnets on and off. The new way [...]