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Nature 220, 62 - 63 (05 October 1968); doi:10.1038/220062a0

Growth of Ice Crystals after a Method by Helmholtz

CHARLES A. KNIGHT

National Center for Atmospheric Research, Boulder, Colorado.

I REPORT here a method of studying the free growth from the melt of ice or any other material, at very small and very accurately controllable supercoolings. Helmholtz's experiment1 was brought to my attention by Dr E. LaChapelle, who discovered large, single ice crystals growing into water-filled cavities within a temperate glacier, and explained them by a natural variation of the present technique2.

  1. Helmholtz, H. , Populäre Wissenschaftliche Vorträge, 130 (Braunschweig, Friedrich Vieweg and Son, 1865).
  2. LaChapelle, E. R. , J. Glaciol., 7, 183 (1968).
  3. Miksch, E. S. , Rev. Sci. Intrum., 36, 797 (1965).
  4. Miksch, E. S. , thesis, Harvard Univ. (Widener Library, Cambridge, Massachusetts, 1963).
  5. Jackson, K. A. , Uhlmann, D. R. , and Hunt, J. D. , J. Crystal Growth, 1, 1 (1967).
  6. Adamson, A. W. , Physical Chemistry of Surfaces, second ed., 356 (Interscience, New York, 1967).



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