Science & Technology Q&A for Kids (and others) [October 1, 2021]
The Stephen Wolfram Podcast
00:00
How Does a Bar Magnet Work?
Inside a bar magnet has a bunch of iron atoms which are all lined up in a certain way. It's the feature of magnetism that magnetism, magetism, always has closed loop field lines. The earth's magnetic field is more or less like what you would get from a giant bar magnet. When your do them with an electric charge, it works very differently.
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