Light Powers Levitating Magnets

Magnetic levitation is old hat these days, with maglev trains operating in China and planned systems taking shape in other countries. But they run by manipulating the train, which is "floating" on a magnetic field, with electricity. Now a team of researchers in Japan have found a way to manipulate magnetically levitating objects using light. The technique could lead to new forms of powered maglev transportation systems and could make solar-powered generators more efficient.To make the levitating graphite device, Masayuki Kobayashi and professor Jiro Abe of Aoyama Gakuin University in Kanagawa arranged a set of magnets made of neodymium, iron and boron in a grid. They then put a piece of graphite on top of the grid. When exposed to an external magnetic field, graphite -- specifically an artificial type called pyrolitic graphite -- generates its own field that repels the external one, a property called diamagnetism. That makes graphite levitate when it's placed on top of permanent magnets.The Brunton Solar Chargers work best with China Solar radio and charger Wholesalers and smaller gizmos. It even works alongside portable solar cells.Sunsei chargers change solar energy to electricity which recharges batteries.
The researchers then hit the graphite with a laser. The laser heated up part of the graphite and changed its susceptibility to the surrounding magnetic field. Hitting the graphite in the center made it sink,They can totally cover the back of your jaw crusher plant and the sides, or they can cover parts of your phone back but still offer the same level of protection.It can even reach around $ 40. as the heating was more even. Aiming the laser at the edge made it move in the direction of the beam.The initial cost of these light sets may be higher than other forms of solar mounting. However, you will soon see that the price is cancelled out by all the money you save on energy costs over time.Even if regular lights only cost you a few dollars a month toward your electric bill, that would eventually add up to be more than you paid for the solar lights in the beginning.Next, they put the graphite on top of a tower of cylindrical magnets and hit the edge of it with the laser beam. The result was a little graphite disc spinning at up to 200 rpm when it was exposed to the laser -- or sunlight.The researchers published the results of their study in the Journal of the American Chemical Society.Being able to generate useful mechanical motion this way could change the way solar power setups are made. A spinning disk could run a generator directly rather than extracting the energy in several steps such as converting the DC current from a photovoltaic cell or using solar power to make steam.
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