Magnetism observed in a gas for the first time For the first time, MIT scientists have observed ferromagnetic behavior in an atomic gas, addressing a decades-old question of whether it is possible for a gas to show properties similar to a magnet made of iron or nickel. The MIT team observed the behavi...
Title: A monopole near a black hole Authors: Claudio Bunster and Marc Henneaux A striking property of an electric charge near a magnetic pole is that the system possesses angular momentum even when both the electric and the magnetic charges are at rest. The angular momentum is proportional to the pr...