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Chinese researchers have created a hypothesis for a quantum cloning machine able to produce several copies of the state of a particle at atomic or sub-atomic scale, or quantum state, which if produced could have implications for quantum information processing methods such as encryption systems.

Quantum cloning is difficult because quantum mechanics laws only allow for an approximate copy—not an exact copy—of an original quantum state to be made, as measuring such a state prior to its cloning would alter it. In their study, they demonstrate that it may be possible to create four approximate copies of an initial quantum state, a process called asymmetric cloning.

Prevailing wind shear patterns prohibit cyclones in the Arabian Sea from becoming major storms but a new study says winds are weakening and that has enabled the formation of stronger cyclones in recent years -- including storms in 2007 and 2010 that were the first recorded storms to enter the Gulf of Oman.

 Black holes are invisible but the forces they unleash cause some of the brightest phenomena in the Universe; quasars. The gravitational lensing effect of stars in a distant galaxy and the Hubble Space Telescope have teamed up to observe a quasar accretion disk, the brightly glowing disk of matter that is slowly being sucked into its galaxy’s central black hole, which heat up and emit extremely bright radiation as they 'enter'.

Result: Researchers were able to directly measure the disk’s size and plot the temperature across different parts of the disc; a level of precision equivalent to spotting individual grains of sand on the surface of the Moon.

Parking is a funny thing; no one is ever happy with it. Even if you go to Disney World, which has come as close as anyone to mastering the perception you are moving while you really go nowhere inside the park itself, the parking is horrendous outside.  If something is popular enough you want to go, the parking will be crowded.  Sometimes you may not go at all because you think about parking.

Researchers estimate that for every 110 vehicles circulating on the roads looking for spaces, there are 100 available spots, both in lots and on the street.  If so, that number is quite high, downright inefficient, but it still isn't high enough to make parking palatable.

In a recent study, scientists used simulations to model the behavior of a closed, granular system comprising a chain of equal-sized spheres that touch one another and are sandwiched between two walls. Energy travels through this system as solitary waves, also known as non-dispersive energy bundles. When the system was disturbed by multiple energy perturbations, akin to someone tapping on each of the walls, the energy spread unevenly through the system.

When we think of DNA, we think of biology but the concept of DNA has become so culturally ingrained it is now colloquial - and the concept of a blueprint common to people may help revolutionize manufacturing.

A group at the Fraunhofer Institute have set out to decode "factory DNA".