SoylentNews is people
SoylentNews
A new class of magnets that expand their volume when placed in a magnetic field and generate negligible amounts of wasteful heat during energy harvesting, has been discovered by researchers at Temple University and the University of Maryland.
The researchers, Harsh Deep Chopra, professor and chair of mechanical engineering at Temple, and Manfred Wuttig, professor of materials science and engineering at Maryland, published their findings, "Non-Joulian Magnetostriction," in the May 21st issue of the journal, Nature. This transformative breakthrough has the potential to not only displace existing technologies but create altogether new applications due to the unusual combination of magnetic properties.
"Our findings fundamentally change the way we think about a certain type of magnetism that has been in place since 1841," said Chopra, who also runs the Materials Genomics and Quantum Devices Laboratories at Temple's College of Engineering.In the 1840s, physicist James Prescott Joule discovered that iron-based magnetic materials changed their shape but not their volume when placed in a magnetic field. This phenomenon is referred to as "Joule Magnetostriction," and since its discovery 175 years ago, all magnets have been characterized on this basis.
"We have discovered a new class of magnets, which we call 'Non-Joulian Magnets,' that show a large volume change in magnetic fields," said Chopra. "Moreover, these non-Joulian magnets also possess the remarkable ability to harvest or convert energy with minimal heat loss."
[Abstract]: http://www.nature.com/nature/journal/v521/n7552/full/nature14459.html
(Score: 2, Insightful) by captain normal on Thursday May 21 2015, @11:13PM
" If everyone has the attitude of "Oh, it doesn't necessarily translate into an application" every time there's a scientific discovery, we'd still be in the dark ages."
Is that what happened to my promised flying car?
Everyone is entitled to his own opinion, but not to his own facts"- --Daniel Patrick Moynihan--
(Score: 2) by arslan on Wednesday May 27 2015, @01:24AM
Who promised you a flying car? Besides why would you want one when you can get one of these [soylentnews.org].
Joking aside, science alone does not guarantee products. Economics and politics play a role too. So unless you're kidding around, your statement seems a little naive to me. But if you have the wrong mindset to start with, you won't even get the science done, which was what I was responding to.
(Score: 2) by captain normal on Wednesday May 27 2015, @02:41AM
I guess I need to bracket humorous and sarcastic comments with a warning....[humorous and/or sarcastic material here]
Everyone is entitled to his own opinion, but not to his own facts"- --Daniel Patrick Moynihan--
(Score: 2) by arslan on Wednesday May 27 2015, @04:29AM
but you're captain normal....