MadSci Network: Physics

Re: foucusing a powerful magnetic field

Date: Fri Aug 12 04:45:07 2005
Posted By: Prater Brian D., Staff, Magnetics, Cavetronics R&D labs
Area of science: Physics
ID: 1123778460.Ph

If a magnetic particle is split quantum mechanically so that one component 
passes to one side, say the left, of the tube, while the other passes to 
the right. Although the magnetic field is zero outside the tube(cone), the 
vector potential associated with the field is not zero.
The two components of the electron would acquire different phases due to 
their interaction with the vector potential - even though the field itself 
was zero - and that the difference between these phases could be detected 
via interference such as aluminum.

The matter would not deform, liquify, or vaporize without alot of teslas
( really huge amount ) But i have seen frogs float in the air from doing 
this . 

Dr. Andre Geim of the University of Nijmegen in the Netherlands led the 
experiments, which were carried out using a giant superconducting magnet. 
The device creates a magnetic field that slightly distorts the orbits of 
the electrons in the atoms of any object placed in its path. The force 
generated was strong enough to make a frog float freely until it wriggled 
its way out of the field. The frog is being hailed as the first living 
creature ever to experience levitation.

In technical terms, this floating effect derives from molecular 
diamagnetism, a very weak magnetic force possessed by all matter. 
Molecular diamagnetism has only a tiny fraction of the strength of ferro-
magnetism, the force that holds magnets to your refrigerator, and it is 
repulsive rather than attractive. Any object placed into an adequately 
powerful magnetic field will thus repel away from the source. 

Hope this helps 
Brian D. Prater
Cavetronics R&D labs

Current Queue | Current Queue for Physics | Physics archives

Try the links in the MadSci Library for more information on Physics.

MadSci Home | Information | Search | Random Knowledge Generator | MadSci Archives | Mad Library | MAD Labs | MAD FAQs | Ask a ? | Join Us! | Help Support MadSci

MadSci Network,
© 1995-2005. All rights reserved.