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-   -   Surface tension 2 bubbles (https://www.askmehelpdesk.com/showthread.php?t=168668)

  • Jan 4, 2008, 07:50 AM
    kesavan
    Surface tension 2 bubbles
    http://www.geocities.com/nk7jaffna/a...desk/soap2.JPG
  • Jan 11, 2008, 04:46 AM
    andreafc
    My intuitive answer is that A would get smaller and B bigger, until the pressures equal out after a while.
  • Jan 13, 2008, 05:54 PM
    PolluxCastor
    The forces at work in the soap bubble get weaker as the membrane gets thinner. My 2 cents says the smaller bubble contracts and the larger expands.
  • Jan 14, 2008, 04:40 PM
    PolluxCastor
    More info:
    The pressure difference (Inside - Outside) is inversely proportional to the radius of the bubble. The smaller the bubble is, the more force the bubble's surface tension exerts.

    This is why a small bubble is always a sphere, whereas a large bubble can be elongated and varying.

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