Abstract
WHEN sulphuric acid sodium sulphate solution containing surface-active material is dropped into water, bubbles approximately 5 mm. in diameter sinking through water may be observed. Such bubbles are spherical shells of air, with a sphere of acid sodium sulphate within and water outside. They are, in fact, soap bubbles in reverse. Instead of a two-surfaced film of soapy solution in air, these have a two-surfaced film of air in soapy solution. Moreover, like the ordinary soap bubble, they show interference colours.
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Benedicks and Sederholm, Nature, 153, 80 (1944).
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ROSE, L. Soap Bubbles in Reverse. Nature 157, 299 (1946). https://doi.org/10.1038/157299c0
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DOI: https://doi.org/10.1038/157299c0
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