IFLS brings you tornadoes

The world’s smallest whirlpools have been found, hidden inside drops of liquid helium cooled to temperatures barely above absolute zero and spun to unimaginable speeds.

When helium is cooled below 2.2K (-271 C) it starts to behave in very strange ways, becoming what is known as a superfluid, where there is no viscosity at all. As the easiest superfluid to create and study liquid helium can provide us with insights into other superfluids, which may include the interiors of neutron stars and, according to an astonishing  theory, spacetime.

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a different view before the weekend

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