Posted on 12/08/2013 6:38:56 PM PST by Utilizer
High-temperature superconductors exhibit a frustratingly varied catalog of odd behavior, such as electrons that arrange themselves into stripes or refuse to arrange themselves symmetrically around atoms. Now two physicists propose that such behaviors and superconductivity itself can all be traced to a single starting point, and they explain why there are so many variations.
This theory might be a step toward new, higher-temperature superconductors that would revolutionize electrical engineering with more efficient motors and generators and lossless power transmission.
-snip-
Most subatomic particles have a tiny magnetic field a property physicists call "spin" and electrical resistance happens when the fields of electrons carrying current interact with those of surrounding atoms. Two electrons can join like two bar magnets, the north pole of one clamping to the south pole of the other, and this "Cooper pair" is magnetically neutral and can move without resistance. Lee and Davis propose that this "antiferromagnetic" interaction is the universal cause not only for superconductivity but also for all the observed intertwined ordering. They show how their "unified" theory can predict the phenomena observed in copper-based, iron-based and so-called "heavy fermion" materials.
(Excerpt) Read more at phys.org ...
It's getting closer.
Great stuff.
Interesting.
I think science will be the solution to a lot of problems, NOT government. If there is anything worthwhile that the government should be spending money on is research, not handouts.
This month’s (kinda early in the month) revolutionary new technology that’ll turn the (flat earth?) world upside down.
(Then we hear crickets.)
They revolutionize it before I even learn the basics. Sheesh.
” If there is anything worthwhile that the government should be spending money on is research, not handouts.”
Depending how it’s done, government “research” is indistinguishable from handouts.
Interesting stuff here.....
Sometimes they don't pan out, sometimes they do.
My young pre-school grandchildren were watching a streaming movie on a wireless tablet a little while ago.
That was science fiction in 1990.
/johnny
/johnny
That's a good thing. You won't have to unlearn anything if you decide to look into it.
They are NOT talking about room-temperature superconductors.
Room-temp superconductors are the holy grail of electrical engineering. That’s what the unobtainium was that they were mining in the sci-fi film “Avatar”
These materials they are talking about are still at very low temperatures.
>> government research is indistinguishable from handouts. <<
.
Particularly under the obama system!
Those drones are not supposed to get close to the ground at any time.
People picture the thing swooping down and landing on the front walk..lol
With dogs and kids playing in the yard there would soon be fur and blood flying... and huge lawsuits emerging.
They are to let the package down on a cord and release it from the end....staying well away from the ground. If by some chance the ground does get too close the engines halt immediately and the rotors freeze. Also some sort of near-instant inflatable safety device will deploy to soften the falling gizmo... a drone air-bag of sorts.
It’s all still a few years off anyway.
The cats will love that.
Yup, I pictured playful cats waiting beneath the lowering packages..lol
I also recommended fisheye cameras digitally record every flight as evidence if anything went awry. Even so, I’d hate to be in charge of such a scheme.
Room-temp superconductors are the holy grail of electrical engineering. Thats what the unobtainium was that they were mining in the sci-fi film Avatar
These materials they are talking about are still at very low temperatures.
Yes, but compare that to the discovery of aluminum so many years ago and how expensive it was at the time to refine it.
Untill some enterprising young genius came up with a way to refine the aluminum oxide he had to almost pure aluminum metal using a totally new electrical application to do so.
Times change, and faster and faster it seems.
Actually, on a semi-related thought; I have to smile when I remember the old saying: "Any sufficiently advanced technology is indistinguishable from magic."
He says on a device that allows him to communicate almost instantly to people all across the planet. For example on a bus in the Middle East.
I’d love to play with room temp superconductors.
I believe we will one day have them.
Imagine the powerful static magnetic fields you could create in a small coil! Similar to what an MRI machine does with its super cooled coil.
Self sustaining magnetic fields of several T and at room temp.
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