Vibration of a Flattened Drop.-1-Observation

  • Adachi Ken
    Faculty of General Education, The University of Electro-Communications
  • Takaki Ryuji
    Faculty of General Education, Tokyo University of Agriculture and Technology

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タイトル別名
  • Vibration of a Flattened Drop. I. Observation
  • Vibration of a Flattened Drop.1 Observa

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Vibration of a single drop of liquid nitrogen, oxygen or argon was observed by putting it on a horizontal plate with the room temperature. The drop had a shape of flattened disk and floated on the plate owing to rapid evaporation. It showed a characteristic mode of vibration, namely a standing wave appeared along the periphery and the plane view showed a polygonal shape. As the radius of drop reduced through evaporation, sudden transitions to modes with smaller number of vertices occurred. The measured vibrational frequency was proportional to (wave number)3⁄2, and depended in a simple way on the surface tension and the density of the liquid.

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