07 October, 2011

Physicists have simulated black holes by means of rotating drops

The British physicists managed to receive in laboratory rotating drops of usual water of the unusual form. According to researchers, these drops can serve as models of black holes. On it informs magazine New Scientist. Work of scientists is published in magazine Physical Review Letters.
For physics experience have used the phenomenon of a so-called diamagnetic levitation. Researchers have placed small drops of water in a powerful vertical magnetic field. As water possesses diamagneticheskimi properties (that is it is magnetised in a direction opposite to a field) scientists have achieved that arising force of pushing away compensated gravity, and drops hanged in air.

Uniform rotation of physics have reached, having placed in a drop two tiny electrodes on which have started up a current. The design similar to the device of the electric motor where the rotor role was played by the drop of water suspended in air has as a result turned out. Scientists have established that at a sight from above a drop in diameter of one centimetre, rotating with a speed about three turns in a second, has the triangular form. The similar effect in laboratory was never observed earlier.

Scientists hope that rotating drops can serve as good model of a black hole. According to modern theories, these objects rotate round own axis. It appears that in certain cases it is convenient to represent a hole as the huge drop possessing a surface which form depends, partly, on speed of rotation of object.

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