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- Lodestone naturally magneticUniversity of Birmingham: History of Magnetism
- Magnetic fields always paired, with equal and opposite "north" and "south" polesNondestructive Testing (NDT) Resource Center: Magnetism
- Opposite poles attract while like poles repel
- Earth's magnetic field used for navigation with compasses
- Ferromagnetism causes most magnetic behaviorNondestructive Testing (NDT) Resource Center: Magnetism
- Ferromagnetic materials include iron, nickel and cobalt
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Magnetism is a force which attracts oppositely magnetized objects to each other, and repels similarly magnetized objects from each other. Every electron is a tiny magnet, but in most materials, the spins of the electrons cancel each other out. In magnetic materials, the electrons can spin in the same direction and create a magnetic field.University of Birmingham: History of Magnetism
History of Magnetism
- 800 BC: Lodestone's attractive power known in China and Europe
- 1000s: Small pieces of iron used in compasses in China
- 1820: Danish scientist Hans-Christian Oersted discovers connection between electricity and magnetism
- 1898: First magnetic recording device developed by Danish engineer Valdemar Poulsen
- 1900s: Permanent magnets developed
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Magnetism Questions
What is your favorite Magnetic Fields album? 1 Answer69 Love Songs (1999) This is a three-disc collection of, you guessed it, 69 love songs. My favorite of Stephen Merritt's songs - by far. read more
What's the difference between true north and magnetic north? 3 AnswersTrue North is the place where all longitude lines meet. This is always a fixed location. Magnetic North the direction the needle in a compass will point to. ... read more
Simple Magnetic theory experiment? 2 AnswersThere are two interesting experiments for your kids. They would really enjoy doing these projects . they are simple and easy to do.Hope your kids enjoy. Magneti... read more
What happens if the earth magnetic field reverses, will all the electronics continue to work? 1 AnswerCompared to the magnetic fields inside electric machinery, the one caused by the Earth is weaker by a factor of thousands. The field of the Earth has at most a ... read more
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Magnetism Books and Merchandise
- Amazon.com: Magnetism Books and Merchandise
- Barnes & Noble: Magnetism Books
- Discover This: Magnetism Educational Science Kits and Toys
- This page was created by Cherryl L, a Part Time Guide in the Mahalo Greenhouse (see the original), and curated by Lelah.
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On Twitter Powered by Twitter
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It's not Magic, it's Magnetism! http://eCa.sh/SCjM
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I might pass my Electricity & Magnetism course yet. I seem to be understanding the textbook now. I think that's a good sign.
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@TheMozFromOz everyone? Not sure. Almost went into a tirade about John Simm's sexyness and PhilGlen's animal magnetism. Almost.
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