Thursday, January 1, 2009

Did You Know.......

Watch these Biomed Techs put a solid hunk of metal in the field of an MRI machine, and it will fall in slow motion because of the powerful magnetic field. A field strong enough to pull a metal screw out of your body like a bullet shot.
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HOW IT WORKS
The aluminum is NOT magnetic. When the aluminum is placed into a magnetic field its creates a flow of electrons that make an electromagnet that REPELS the magnetic field entering it, so it falls very slowly. The flow flow of electrons creates friction as they flow, and that’s why it heats up and DOESNT FLOAT.
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YOU KNOW NOW
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