2007-02-26 15:43:29 · 7 answers · asked by ad_sessionrd 2 in Science & Mathematics ➔ Physics
Particularly in humans?
2007-02-28 15:54:20 · update #1
Yes, it is. When two magnets have similar poles and are placed on top of each other at extremely cold temperatures, objects can be temporarily levitated-through the power of magnetism!
2007-02-26 15:50:56 · answer #1 · answered by Radical One 6 · 1⤊ 0⤋
Yes, with the use of Superconductivity
Check out the link below!
Superconductivity
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A magnet levitating above a high-temperature superconductor, cooled with liquid nitrogen. Electric current flows just within the surface of the superconductor, acting to exclude the magnetic field of the magnet (the Meissner effect). This current, which lasts indefinitely, effectively forms an electromagnet that repels the magnet.Superconductivity is a phenomenon occurring in certain materials at extremely low temperatures, characterized by exactly zero electrical resistance and the exclusion of the interior magnetic field (the Meissner effect).
The electrical resistivity of a metallic conductor decreases gradually as the temperature is lowered. However, in ordinary conductors such as copper and silver, impurities and other defects impose a lower limit. Even near absolute zero a real sample of copper shows a non-zero resistance. The resistance of a superconductor, on the other hand, drops abruptly to zero when the material is cooled below its "critical temperature", typically 20 kelvins or less. An electrical current flowing in a loop of superconducting wire can persist indefinitely with no power source. Like ferromagnetism and atomic spectral lines, superconductivity is a quantum mechanical phenomenon. It cannot be understood simply as the idealization of "perfect conductivity" in classical physics.
Superconductivity occurs in a wide variety of materials, including simple elements like tin and aluminum, various metallic alloys and some heavily-doped semiconductors. Superconductivity does not occur in noble metals like gold and silver, nor in most ferromagnetic metals.
In 1986 the discovery of a family of cuprate-perovskite ceramic materials known as high-temperature superconductors, with critical temperatures in excess of 90 kelvins, spurred renewed interest and research in superconductivity for several reasons. As a topic of pure research, these materials represented a new phenomenon not explained by the current theory. And, because the superconducting state persists up to more manageable temperatures, more commercial applications are feasible, especially if materials with even higher critical temperatures could be discovered.
2007-02-26 16:42:49 · answer #2 · answered by Anonymous · 1⤊ 2⤋
Yes levitation of magnetic objects is in theory possible, in fact, some people say that Nikola Tesla made a levitator that could lift huge boulders!
2007-02-26 16:11:49 · answer #3 · answered by Anonymous · 1⤊ 1⤋
Yes it's possible... Everything is possible. All you have to do is get rid of or defy gravity, but that's another question.
2007-03-05 06:06:51 · answer #4 · answered by Ilya S 3 · 0⤊ 1⤋
its just an illusion like pop-lock.
in pop lock when you make an arm wave you move it doing multiple steps then you do it faster so you can make it look like its waving.
2007-02-26 15:52:11 · answer #5 · answered by Anonymous · 0⤊ 3⤋
No.
2007-03-04 02:22:55 · answer #6 · answered by H.C.Will 3 · 0⤊ 1⤋
no, i'm pretty sure its not
2007-02-26 15:51:03 · answer #7 · answered by Anonymous · 0⤊ 3⤋