Superfluiditeetti
Superfluiditeetti is a state of matter that exhibits zero viscosity. This means that a superfluid can flow without any internal friction. When a superfluid is placed in a container, it will spontaneously flow up the sides and over the edge, a phenomenon known as the fountain effect or the thermomechanical effect. Superfluidity is a quantum mechanical phenomenon that occurs at very low temperatures, close to absolute zero.
The most well-known superfluid is helium-4, which becomes superfluid below a temperature of about 2.17 Kelvin
The lack of viscosity in superfluids has several remarkable consequences. For instance, a superfluid stirred in