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magnetism in the 21st century

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by

Katie Schafer

on 5 May 2010

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Transcript of magnetism in the 21st century

uses for magnetism in the 21st century anna & katie credit card magnetic strips ferromagnetism:
the magnetism that picks up our paperclips "the basic mechanism by which certain materials (such as iron) form permanent magnets" diamagnetism:
what we are to frogs "the property of an object which causes it to create a magnetic field in opposition of an externally applied magnetic field, causing a repulsive effect" Gyroscope a really advanced compass
belongs in telescopes that go in space
and in space ships a small magnet is balanced on a pivot point,
and the needle rotates to tell you the direction compass store information by modifying the
magnetism of little magnetic particles mri scanner radio waves determine what type of tissue
very magnetic, will pull metal right out of your hands
magnetix plastic rods with steel
magnetic balls on the
end that connect
together to build a structure
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