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A New Law For Superconductors
TaleSlinger sends word of a newly-discovered "mathematical relationship — between material thickness, temperature, and electrical resistance — that appears to hold in all superconductors." The work (abstract), led by Yachin Irvy, comes out of MIT's Research Laboratory of Electronics. Researchers found that a particular superconductor (niobium nitride) didn't fit earlier models estimating the temperature at which it changes from normal conductivity to superconductivity.
So the researchers conducted a series of experiments in which they held constant either thickness or “sheet resistance,” the material’s resistance per unit area, while varying the other parameter; they then measured the ensuing changes in critical temperature. A clear pattern emerged: Thickness times critical temperature equaled a constant — call it A — divided by sheet resistance raised to a particular power — call it B. ... The other niobium nitride papers Ivry consulted bore out his predictions, so he began to expand to other superconductors. Each new material he investigated required him to adjust the formula’s constants — A and B. But the general form of the equation held across results reported for roughly three dozen different superconductors.
Democrats will pass a new law that stops discrimination against superconductors on the basis of how thick they are.
The law:
a * C = b
holds for any two non-zero real numbers if you align the constant C.
Nuke Mecca
Per Wikipedia: "Superconductivity is a phenomenon of exactly zero electrical resistance and expulsion of magnetic fields occurring in certain materials when cooled below a characteristic critical temperature." According to the given formula: thickness x critical temperature = A / (sheet resistance) ^ B, that would give division by zero or am is something not clear?
I thought it was understood because it was so painfully obvious? If only I had known the world was so stupid I would have published the law myself decades ago...
On my order for one Coulomb rated supercapacitor?
Am I missing something, isn't room temp supercapacitor == post-battery world?
But a and b aren't simply real numbers. They are _variables_ that can adopt real numbers. So, a1 * C = b1, but a2 * C != b2 is of course valid. Except for the properties of superconducting materials in which case it appears to be that if a1 * C = b1 then a2 * C = b2.
A researcher has identified a new social law that describes exactly the probability of getting lucky, which only relies on 17 variables, each of which needs only be adjusted for each pairing of two individuals.
Nuke your mom.
And this folks is how you do basic research and why it pays to do it!
I don't know anything about the physics of this paper.
But I love figure 3 (also highlighted at the aps.org URL),
because it highlights outliers from the theory, and points
to the supplementary information for theories about why
those points didn't fit the otherwise nice curve.
Bringing attention to errors as well as successes - that's
good honest work.
He found a neat empirical formula that matches nature.
Does our model of how things work (QED?) fit this formula,
or do we get an opportunity for a better model?
Naming it now to save everyone else the trouble when the Nobel prize gets awarded to this person.
Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
When I read the headline, I was immediately thinking of some artifical law regulating the production, storage, and sale of super-conductors. Of course, also regulating the export to other countries.
Sad, isn't it?
WTF? Railroad Super Conductors get preferential treatment over less than stellar ones? What lobbying group managed to get Congress to pass this?
Oh...wait...
http://arxiv.org/abs/1407.5945
What Democrats will do is what they have done all along: Invent all the technology that matters.
So, does this suggest a reasonable upper temperature for superconductivity?
Is there anything better than clicking through Microsoft ads on Slashdot?
(Warming up to this) Muslims will declare that it's ok to beat conductors, set them on fire, and cut the connectors off them because they aren't superconductors. The conductor only has to be a few years old before you can plug into it. Islam will become the religion of conduction, and young men who wrap themselves with coils of wire that will annihilate them, exploding with great effect when power is applied with the assumption that said coil WAS a superconductor, will go to heaven and be greeted by 77 male virgins named Kelvin. Their first words upon this gruesome discovery will be "Gee had... I only known... Whoops..."