Astronomers have found an extraordinary trail of gas greater than 300,000 light years across originating from a nearby galaxy called NGC 4569, according to a report in Astronomy & Astrophysics.
The tail is comprised of hydrogen gas, the material new stars are born from, and is five times longer than the galaxy itself.
Physicists have zoomed in on the transition that could explain why copper-oxides have such impressive superconducting powers.
Settling a 20-year debate in the field, they found that a mysterious quantum phase transition associated with the termination of a regime called the “pseudogap” causes a sharp drop in the number of conducting electrons available to pair up for superconductivity. The team hypothesizes that whatever is happening at this point is probably the reason that cuprates support superconductivity at much higher temperatures than other materials—about half way to room temperature.
“It’s very likely that the reason superconductivity grows in the first place, and the reason it grows so strongly, is because of that critical point,” CIFAR Senior Fellow Louis Taillefer (Université de Sherbrooke) says. The new findings are published in Nature.
Anjan Contractor’s 3D food printer might evoke visions of the “replicator” popularized in Star Trek, from which Captain Picard was constantly interrupting himself to order tea. And indeed Contractor’s company, Systems & Materials Research Corporation, just got a six month, $125,000 grant from NASA to create a prototype of his universal food synthesizer.
But Contractor, a mechanical engineer with a background in 3D printing, envisions a much more mundane—and ultimately more important—use for the technology. He sees a day when every kitchen has a 3D printer, and the earth’s 12 billion people feed themselves customized, nutritionally-appropriate meals synthesized one layer at a time, from cartridges of powder and oils they buy at the corner grocery store. Contractor’s vision would mean the end of food waste, because the powder his system will use is shelf-stable for up to 30 years, so that each cartridge, whether it contains sugars, complex carbohydrates, protein or some other basic building block, would be fully exhausted before being returned to the store.
Ubiquitous food synthesizers would also create new ways of producing the basic calories on which we all rely. Since a powder is a powder, the inputs could be anything that contain the right organic molecules. We already know that eating meat is environmentally unsustainable, so why not get all our protein from insects?
The nanoscale coating that’s at least 95% air repels the broadest range of liquids of any material in its class, causing them to bounce off the treated surface, according to the University of Michigan engineering researchers who developed it.
#sweet!
Electrons which act like slow-pouring honey have been observed for the first time in graphene, prompting a new approach to fundamental physics.
Electrons are known to move through metals like bullets being reflected only by imperfections, but in graphene they move like in a very viscous liquid, University of Manchester researchers have found.
The possibility of a highly viscous flow of electrons in metals was predicted several decades ago but despite numerous efforts never observed, until now as reported in the journal Science.
This agreement places Oxford in a very nice position.
Quantum transport measurements are widely used in characterising new materials and devices for emerging quantum technology applications such as quantum information processing (QIP), quantum computing (QC) and quantum sensors. Such devices hold the potential to revolutionise future technology in high performance computing and sensing in the same way that semiconductors and the transistor did over half a century ago.
Physicists have long used standard electrical transport measurements such as resistivity, conductance and the Hall effect to gain information on the electronic properties and structure of materials. Now quantum transport measurements such as the quantum Hall effect (QHE) and fractional quantum Hall effect (FQHE) in two-dimensional electron gases (2DEG) and topological insulators – along with a range of other more complex measurements – inform researchers on material properties with quantum mechanical effects.
The ultra low temperatures and high magnetic fields provided by Oxford Instruments’ TritonTM dilution refrigerator make it a key research tool in revealing the quantum properties of many materials of interest. SPECS’ Nanonis Tramea QTMS is a natural complementary partner to the Triton, with its fast, multi-channel measurements.
This 2D material is only one atom thick and allows electrical charges to move through it much faster, which would make computers remarkably faster.
I have mentioned in my previous posts about the Quantum Internet work that Los Alamos has been leading; today Los Alamos has been awarded a patent on their Quantum Communication (QC) Optical Fiber.
Whitewood received a Notice of Allowance for a patent application that addresses issues that arise when employing quantum communications techniques to share cryptographic material over fiber networks.
ArcPoint Strategic Communications.
Researchers in Japan have found a way to make the ‘wonder material’ graphene superconductive — which means electricity can flow through it with zero resistance. The new property adds to graphene’s already impressive list of attributes, like the fact that it’s stronger than steel, harder than diamond, and incredibly flexible.
But superconductivity is a big deal, even for graphene, because when electricity can flow without resistance, it can lead to significantly more efficient electronic devices, not to mention power lines. Right now, energy companies are losing about 7 percent of their energy as heat as a result of resistance in the grid.
Before you get too excited, this demonstration of superconductivity in graphene occurred at a super cold −269 degrees Celsius, so we’re not going to be making power lines out of graphene any time soon.
