Magnets Can Control Heat and Sound

[yhokz101]

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Magnets can control heat and sound: Experiment reveals new mysterious properties of sound waves.


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Researchers at The Ohio State University have discovered how to control heat with a magnetic field.

In the March 23 issue of the journal Nature Materials, they describe how a magnetic field roughly the size of a medical MRI reduced the amount of heat flowing through a semiconductor by 12 percent.

The study is the first ever to prove that acoustic phonons -- the elemental particles that transmit both heat and sound -- have magnetic properties.

"This adds a new dimension to our understanding of acoustic waves," said Joseph Heremans, Ohio Eminent Scholar in Nanotechnology and professor of mechanical engineering at Ohio State. "We've shown that we can steer heat magnetically. With a strong enough magnetic field, we should be able to steer sound waves, too."

People might be surprised enough to learn that heat and sound have anything to do with each other, much less that either can be controlled by magnets, Heremans acknowledged. But both are expressions of the same form of energy, quantum mechanically speaking. So any force that controls one should control the other.

Magnets can control heat and sound: Experiment reveals new mysterious properties of sound waves -- ScienceDaily

[yhokz101]

I don't know this seems a boring subject BUT this is truly an eye opening.. how magnets can affect/control heat & sound. I can see many possibilities..

[eds444]

if heat can be steered magnetically, this would mean a step closer to developing near-perpetual machines

[yhokz101]

And this could lead to some major advancements in electronics...

[Lee Ho Khan]

if heat can be steered magnetically, this would mean a step closer to developing near-perpetual machines

Care to expound or cite a feasible example sir?

[eds444]

Care to expound or cite a feasible example sir?

energy lost in heat during work by a primary machine can be redirected to become a driving force in some other connected machine which would in turn proceed in to power up the primary machine. In this way, we only need to apply energy once for the machine to run and it would continously run by itself since all the energy is utilized. this is of course assuming that the magnetic source is innate, not needing an external energy source and doesn't degrade over time

sorry if I can't site specifics; not that well-versed with machines