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Surface Transport of Liquid Helium II


RECENTLY, Atkins1 has reported transport-rates in helium films which were many times greater than those observed under somewhat similar conditions by J. G. Daunt and one of us2. Moreover, these rates were not constant, as in our experiments, but evidently varied in a complex manner with the length of the film. Atkins used glass beakers which, in contradistinction to our original experiments, ended in a large bulb. He ascribed the phenomena observed by him as being due to the geometrical arrangement and connected with the temperature gradient in the film, supporting this suggestion by a separate experiment. Lately, de Haas and van den Berg3 have also observed such high transfer-rates. It appears that there was no temperature gradient in their experiment, and they attribute the high rate to the complete absence of incident radiation.

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  2. Daunt, J. G., and Mendelssohn, K., Proc. Roy. Soc., A, 170, 423 (1939); Nature, 143, 719 (1939); ibid., 157, 839 (1946).

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  3. de Haas, W. J., and van den Berg, G. J., to be published shortly; private communication.

  4. Brown, J. B., and Mendelssohn, K., to be published shortly; Brown, J. B., thesis (Oxford, 1949).

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BOWERS, R., MENDELSSOHN, K. Surface Transport of Liquid Helium II. Nature 163, 870–871 (1949).

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