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Location: UFOUpDatesList.Com > 2005 > May > May 13

How To Float Like A Stone

From: UFO UpDates - Toronto <ufoupdates.nul>
Date: Fri, 13 May 2005 09:39:39 -0400
Fwd Date: Fri, 13 May 2005 09:39:39 -0400
Subject: How To Float Like A Stone

Source: The Guardian OnLine - London, U.K.


May 11, 2005

How To Float Like A Stone

David Adam
Science Ccorrespondent
The Guardian

What goes up no longer has to come down. British scientists have
developed an antigravity machine that can float heavy stones,
coins and lumps of metal in mid-air. Based around a powerful
magnet, the device levitates objects in a similar way to how a
maglev train runs above its tracks.

Peter King, a physics professor at Nottingham University, said:
"We can take an object and float it in mid-air because the
magnetic forces on the object are enough to balance gravity."

The device exploits diamagnetism. Place non-magnetic objects
inside a strong enough magnetic field and they are forced to act
like weak magnets themselves. Generate a field that is stronger
below and weaker above, and the resulting upward magnetic force
cancels out gravity.

Scientists have used diamagnetism to make wood, strawberries
and, famously, a living frog fly. "That force is strong enough
to float things with a density similar to water, but not things
with the density of rocks," Prof King said. To make their
machine more powerful, the team added an oxygen and nitrogen
mixture, a paramagnetic fluid. Inside the magnet, the mixture
helps objects to float.

The researchers, who announce their results today in the New
Journal of Physics, are working with Rio Tinto to develop the
technique to sort precious stones from soil. The US space agency
Nasa is also interested as it offers a cheaper way for zero
gravity research.

[Thanks to Stuart Miller of http://www.uforeview.net for the lead]

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