Magnets are very attractive, aren't they?

Ever since I was a kid I've loved playing with magnets. They're just so amazing! Remember those nifty, magnetic Scottie Dogs you could buy? Often one was black and the other was white but sometimes they were the same color. You could set them up on the table and push one away with the other until the loose one flipped around and the two joined together with a dull snap. Or how about using a magnet underneath the table to move a paperclip around the tabletop? That was always fun. I still like playing with magnets. When I worked in the Dino and Fossils gallery here at the museum, I carried a magnet with me and would demonstrate the magnetic properties of iron ore, especially the very magnetic mineral, magnetite.

I've been watching some videos lately about magnets and magnetism, and an oddball magnetic liquid called ferrofluid, which you can make in your kitchen. Anyway, I've gathered some videos here to share with our Buzz audience. The first (above) is about the strongest magnet in the world! The next is a levitation demonstration using neodymium magnets, followed by a couple videos utilizing ferrofluid, and ending with instructions on how to make your own at home.

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