Viscosity of Liquid Helium below the λ-Point
@article{Kapitza1938ViscosityOL, title={Viscosity of Liquid Helium below the λ-Point}, author={P. Kapitza}, journal={Nature}, year={1938}, volume={141}, pages={74-74} }
THE abnormally high heat conductivity of helium II below the λ-point, as first observed by Keesom, suggested to me the possibility of an explanation in terms of convection currents. This explanation would require helium II to have an abnormally low viscosity; at present, the only viscosity measurements on liquid helium have been made in Toronto1, and showed that there is a drop in viscosity below the λ-point by a factor of 3 compared with liquid helium at normal pressure, and by a factor of 8… CONTINUE READING
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