Magnets

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Issue:

Miscellaneous

 

Written by:

Sam M

 

Date added:

October 25, 2016

 

Level:

University

 

Grade:

A

 

No of pages / words:

6 / 1632

 

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4089 times

 

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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...
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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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