Eternal Clock Could Keep Time After Universe Dies
By Clara Moskowitz | Space.com
The idea for an eternal clock that would continue to keep time even after the universe ceased to exist has intrigued physicists. However, no one has figured out how one might be built, until now.
Researchers have now proposed an experimental design for a "space-time crystal" that would be able to keep time forever. This four-dimensional crystal would be similar to conventional 3D crystals, which are structures, like snowflakes and diamonds, whose atoms are arranged in repeating patterns. Whereas a diamond has a periodic structure in three dimensions, the space-time crystal would be periodic in time as well as space.
The idea of a 4D space-time crystal was first proposed earlier this year by MIT physicist Frank Wilczek, though the concept was purely theoretical. Now a team of researchers led by Xiang Zhang of California’s Lawrence Berkeley National Laboratory has conceived of how to make one a reality.
"The idea of creating a crystal with dimensions higher than that of conventional 3D crystals is an important conceptual breakthrough in physics, and it is very exciting for us to be the first to devise a way to realize a space-time crystal," Berkeley Lab physicist Tongcang Li, a member of the research group, said in a statement.
Zhang and his colleagues suggest that a space-time crystal could be constructed using an electric field to trap charged atoms (called ions), and taking advantage of the natural repulsion between two like-charged particles (positive and positive, or negative and negative), which is called Coulomb repulsion.
Read the full article at: space.com
Latest News from our Front Page
Pressure from the United Patriots Front Stops Mosque Plan
Pressure from the United Patriots Front appears to have killed off a mosque development in Narre Warren North.
The City of Casey council now looks likely to withhold planning approval for the development in a special meeting set for Tuesday night.
A council report, to be considered by councillors on Tuesday, recommends that the approval be blocked.
The mosque opponents’ cause has been helped by councillor ...
Police face questions over the influence of the Freemasons
South Yorkshire Police today face questions over whether powerful 'secret society' the Freemasons held sway over the force at the time of Hillsborough.
Families of victims say that officers who were Masons were promoted into powerful positions despite being ill-equipped, including match commander David Duckenfield.
Duckenfield told the fresh inquests he had been a Freemason since 1975 and became head of his ...
England Bans its Own Flag to Avoid Offending Muslims
St. George's Cross "racist" towards immigrants
Government officials said their city was ‘too multicultural’ to celebrate St George’s Day, England’s version of the 4th of July.
The council said that displaying the English flag may have been seen as “racist” towards immigrants.
Half of Western European men descended from one Bronze Age ‘king’
Half of Western European men are descended from one Bronze Age ‘king’ who sired a dynasty of elite nobles which spread throughout Europe, a new study has shown.
The monarch, who lived around 4,000 years ago, is likely to have been one of the earliest chieftains to take power in the continent.
He was part of a new order which emerged in ...
"Local Residents" Are Filmed Stealing Dozens of Bottles of Water at London Marathon Stop
Editor's Comment: "Local" residents? Why bother blurring their faces? We know who they are.
London marathon runners were robbed of dozens of bottled waters when thieves raided a refreshment area armed with trolleys during today's race.
Nearby residents - including parents with children - were captured on camera piling up crates of free water handed out by volunteers during the 26-mile event.
|More News » |