14-06-11 Magnetic cooling is a promising new refrigeration technology boasting several advantages - ranging from lower energy consumption to eliminating the use of hazardous fluids - that combine to make it a much more environmentally friendly option than to...
14-05-09 Magnetic devices like hard drives, magnetic random access memories (MRAMs), molecular magnets, and quantum computers depend on the manipulation of magnetic properties. In an atom, magnetism arises from the spin and orbital momentum of its electrons....
14-05-07 Neutron stars, the extraordinarily dense stellar bodies created when massive stars collapse, are known to host the strongest magnetic fields in the universe -- as much as a billion times more powerful than any human-made electromagnet. But some neut...
14-03-20 Inspired by the space physics behind solar flares and the aurora(极光) , a team of researchers from the University of Michigan and Princeton has uncovered a new kind of magnetic behavior that could help make nuclear fusion reactions easier to star...
13-12-09 The energy needed to change the magnetic orientation of a single atom -- which determines its magnetic stability and therefore its usefulness in a variety of future device applications -- can be modified by varying the atom's electrical coupling to...
13-11-21 Cooling systems generally rely on water pumped through pipes to remove unwanted heat. Now, researchers at MIT and in Australia have found a way of enhancing heat transfer in such systems by using magnetic fields, a method that could prevent hotspots...
13-08-07 Something big is about to happen on the sun. According to measurements from NASA-supported observatories, the sun's vast magnetic field is about to flip. It looks like we're no more than three to four months away from a complete field reversal(逆转...
13-08-01 Virginia Commonwealth University researchers have discovered, in theory, the possibility of creating large, hollow magnetic cage molecules that could one day be used in medicine as a drug delivery system to non-invasively treat tumors, and in other...
13-07-13 A solar tsunami observed by NASA's Solar Dynamics Observatory (SDO) and the Japanese Hinode spacecraft has been used to provide the first accurate estimates of the Sun's magnetic field. Solar tsunamis are produced by enormous explosions in the Sun's...
13-05-23 Researchers at the Universities of Leeds and Chicago have uncovered an important mechanism behind the generation of astrophysical(天体物理学的) magnetic fields such as that of the Sun. Scientists have known since the 18th Century that the Sun regu...