Surface tension supported floating of heavy objects: Why elongated bodies float better?

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21 Scopus citations

Abstract

Floating of bodies heavier than the supporting liquid is discussed. Floating of cylindrical, ellipsoidal bodies and rectangular plates possessing lateral dimensions smaller than the capillary length is treated. It is demonstrated that more elongated bodies of a fixed volume are better supported by capillary forces, due to the increase in the perimeter of the triple line. Thus, floating of metallic needles obtains reasonable explanation.

Original languageEnglish
Pages (from-to)8-12
Number of pages5
JournalJournal of Colloid and Interface Science
Volume463
DOIs
StatePublished - 1 Feb 2016

Keywords

  • Capillary length
  • Elongated bodies
  • Floating
  • Heavy objects
  • Surface tension

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