To create it, Silvera and Dias squeezed a tiny hydrogen sample at 495 gigapascal, or more than 71.7 million pounds-per-square inch - greater than the pressure at the center of the Earth. At those extreme pressures, Silvera explained, solid molecular hydrogen -which consists of molecules on the lattice sites of the solid - breaks down, and the tightly
predictions suggest metallic hydrogen could act as a superconductor at room temperatures.
Among the holy grails of physics, a room temperature superconductor, Dias said, could radically change our transportation system, making magnetic levitation of high-speed trains possible, as well as making electric cars more efficient and improving the performance of many electronic devices.
The material could also provide major improvements in energy production and storage - because superconductors have zero resistance energy could be stored by maintaining currents in superconducting coils, and then be used when needed.
"It takes a tremendous amount of energy to make metallic hydrogen," Silvera explained. "And if you convert it back to molecular hydrogen, all that energy is released, so it would make it the most powerful rocket propellant known to man, and could revolutionize rocketry."
The most powerful fuels in use today are characterized by a "specific impulse" - a measure, in seconds, of how fast a propellant is fired from the back of a rocket - of 450 seconds. The specific impulse for metallic hydrogen, by comparison, is theorized to be 1,700 seconds.
"That would easily allow you to explore the outer planets," Silvera said. "We would be able to put rockets into orbit with only one stage, versus two, and could send up larger payloads, so it could be very important."
'Proven one-step process to convert CO2 and water directly into liquid hydrocarbon fuel
A team of University of Texas at Arlington chemists and engineers have proven that concentrated light, heat and high pressures can drive the one-step conversion of carbon dioxide and water directly into useable liquid hydrocarbon fuels.
This simple and inexpensive new sustainable fuels technology could potentially help limit global warming by removing carbon dioxide from the atmosphere to make fuel. The process also reverts oxygen back into the system as a byproduct of the reaction, with a clear positive environmental impact, researchers said.
"Our process also has an important advantage over battery or gaseous-hydrogen powered vehicle technologies as many of the hydrocarbon products from our reaction are exactly what we use in cars, trucks and planes, so there would be no need to change the current fuel distribution system," said Frederick MacDonnell, UTA interim chair of chemistry and biochemistry and co-principal investigator of the project.
In an article published today in the Proceedings of the National Academy of Sciences titled "Solar photothermochemical alkane reverse combustion," the researchers demonstrate that the one-step conversion of carbon dioxide and water into liquid hydrocarbons and oxygen can be achieved in a photothermochemical flow reactor operating at 180 to 200 C and pressures up to 6 atmospheres.'
The United States last week accused China of raising tensions in the South China Sea by its apparent deployment of surface-to-air missiles on a disputed island, a move China has neither confirmed nor denied.
Asked whether the South China Sea, and the missiles, would come up when Wang is in the United States to meet Secretary of State John Kerry, Foreign Ministry spokeswoman Hua Chunying said Washington should not use the issue of military facilities on the islands as a "pretext to make a fuss".
"The U.S. is not involved in the South China Sea dispute, and this is not and should not become a problem between China and the United States," Hua told a daily news briefing.
China hopes the U.S. abides by its promises not to take sides in the dispute and stop "hyping up" the issue and tensions, especially over China's "limited" military positions there, she said.
"China's deploying necessary, limited defensive facilities on its own territory is not substantively different from the United States defending Hawaii," Hua added.
U.S. ships and aircraft carrying out frequent, close-in patrols and surveillance in recent years is what has increased regional tensions, she said.
"It's this that is the biggest cause of the militarization of the South China Sea. We hope that the United States does not confuse right and wrong on this issue or practice double standards."
surrounding the hot object with special nanophotonic structures that spectrally filter the emitted light, meaning that they let the light reflect or pass through based on its color. Because the filters are not in direct physical contact with the emitter, temperatures can be very high.
The researchers also redesigned the incandescent filament from scratch. In this case, they turned it into a piece that was laser-machined out of a flat sheet of tungsten, which makes it completely planar. Since a planar filament has a large area, it's efficient at re-absorbing the light that was reflected by the filter.
In the new-concept light bulb prototype, the efficiency approaches some fluorescent and LED bulbs. This could be huge for the future of light bulbs.'
The rumour of this possible detection was first mentioned in The Guardian on 7 December by Paul Davies. Now the story has now taken on a life of its own, thanks to a tweet by the physicist and author Lawrence Krauss.'
My earlier rumor about LIGO has been confirmed by independent sources. Stay tuned! Gravitational waves may have been discovered!! Exciting.
— Lawrence M. Krauss (@LKrauss1) January 11, 2016
The diplomatic protests from the three countries — Bahrain, Sudan and the United Arab Emirates — came as Iran accused Saudi Arabia of using an attack on the Saudi Embassy in Tehran two days earlier as a pretext for diverting attention from its problems.
Iranian protesters ransacked and set fire to the embassy on Saturday, along with the Saudi Consulate in Iran's second-largest city, Mashhad, after the Saudis executed a Shiite cleric who had criticized the Sunni kingdom's treatment of its Shiite minority. The Shiite cleric, Sheikh Nimr al-Nimr, was among a group of 47 people who were executed'
A war could break out between Iran and Saudi Arabia, shutting down the Gulf.
The newspaper often used by the White House to distribute public relations narratives, then directly tells us, "It is partly that theory that President Obama referred to in his speech on Sunday …"
Now all the bizarre nonsense spewing from Mr. Obama's henchmen and sycophants makes perfect sense, if you're being driven by Koranic prophecy, that is. We've been told for over a year now that we can't confront ISIS directly because … that's what they want!
The singular talking point has been so absurdly pushed, the folks over at the online investigative magazine, Free Beacon, have produced a video titled, "The Islamic State Wants Us To Destroy It," within which they lampoon a litany of talking heads, politicians and academics moving the White House's narrative:
"Dozens of thought leaders familiar with the terrorist group say that its members yearn for the day that close air support from an A-10 Warthog cuts them in half while coalition soldiers storm Raqqa," notes the Beacon. "They are begging for U.S. troops on the ground," former Obama administration official Van Jones said. "That's what they want."
"The one thing ISIS wants the most: American boots on the ground," CNN anchor Fareed Zakaria said. "As long as we're relying on military force, this is the kind of terms [sic] that ISIS wants. This is what strengthens them," Institute for Policy Studies scholar Phyllis Bennis said. "More war is exactly what ISIS wants," Sen. Angus King, Maine independent, said.
Mobile order-and-pay is still rare, but could become more common as fast-food chains look to keep up with changing expectations. Taco Bell also introduced a mobile app last year that lets people order and pay in advance, and Wendy's says it's testing the option. If it works well, companies see such services and mobile apps in general as a way to build customer loyalty.'
Scientists have discovered a new species of human ancestor deep in a South African cave, adding a baffling new branch to the family tree.'