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 ...

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The present data were obtained from observations on the flow of liquid helium II through long capillaries. Two capillaries were used; the first had a circular bore of radius 0 -05 cm. and length ...

Using helium as the working gas ... According to the researchers, in the field of room-temperature, heat-driven refrigeration, their new HDTR technology not only outperforms adsorption ...