Abstract
PROF. W. J. DE HAAS, University of Leyden, informs us by cable that on February 15 he succeeded in reaching a temperature only five thousandths (0.005) of a degree above absolute zero. Particulars of this remarkable achievement will be awaited with great interest.
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Announcements. Nature 135, 302 (1935). https://doi.org/10.1038/135302c0
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DOI: https://doi.org/10.1038/135302c0