Critical Levitation Loci for Spheres on Cryogenic Fluids

  • R. C. Hendricks
  • S. A. Ohm
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 17)


Floating a waxed steel pin on water has long been a source of amusement and an apparent paradox to Archimedes’ principle. However, a closer examination reveals that one simply has not accounted for all the forces acting to float the pin.


Density Ratio Force Balance Bond Number Vapor Film Minimum Energy Configuration 


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    R. C. Hendricks and K. J. Baumeister, “Heat Transfer and Levitation of a Sphere in Leidenfrost Boiling,” NASA TN D5694 (1970).Google Scholar
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    S. Timoshenko and S. Woinowsky-Krieger, Theory of Plates and Shells, 2nd edition, McGraw-Hill, New York, (1959), pp. 443–445.Google Scholar

Copyright information

© Springer Science+Business Media New York 1972

Authors and Affiliations

  • R. C. Hendricks
    • 1
  • S. A. Ohm
    • 1
  1. 1.NASA Lewis Research CenterClevelandUSA

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