The properties of the superfluid phase of liquid have fascinated physicists since they were first observed (1). The most spectacular manifestation of the superfluid phase, which exists in the liquid below 2.17 K at saturated vapor pressure, is its ability to transfer heat without a thermal gradient and to flow without viscosity. Superfluidity, like its cousin superconductivity, is a macroscopic manifestation of the microscopic quantum effects governing the behavior of atoms. In both these phenomena the microscopic explanation for these macroscopic effects is the phenomena of Bose condensation.