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Magnets
Essay specific features
Written by:
Andrea B
Date added:
March 23, 2011
Level:
University
Grade:
B
No of pages / words:
6 / 1632
Was viewed:
6575 times
Rating of current essay:
Essay content:
In 1939, Werner Braunbeck levitated small beads of graphite in a vertical electromagnet. Graphite has the largest ratio c /r known for diamagnetics (8x10-5
m3/g); today, this experiment can be repeated using just a strong permanent magnet, such as one made of neodymium, iron and boron. Leaving aside superconductors (which are ideal diamagnetics), first levitated by Arkadiev in 1947, it took another fifty y
rs to rediscover the possible levitation of conventional, room-temperature materials...
displayed 300 characters
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Leaving aside superconductors (which are ideal diamagnetics), first levitated by Arkadiev in 1947, it took another fifty y
rs to rediscover the possible levitation of conventional, room-temperature materials. In 1991, Eric Beaugnon and Robert Tournier magnetically lifted water and a number of organic substances...
displayed 300 characters
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