Abstract
Liddell and Wootten1 have described a method for sampling fog droplets in a suitable form for measurement under the microscope. In this, microscope slides were coated with a gelatin film which incorporated a purified dye. When water droplets impinged on this film a characteristic dark crater-like ring remained after evaporation of the droplet. The film gave a permanent sample and when ideally prepared detected fog droplets down to 1µ. The ratio of the diameter of the ring to the original droplet was constant.
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References
Liddell, H. F., and Wootten, N. W., Quart. J. Roy. Meteor. Soc., 83, 263 (1957).
May, K. R., J. Sci. Instr., 27, 128 (1950).
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MAY, K. Detecting Volatile Airborne Droplets. Nature 183, 742–743 (1959). https://doi.org/10.1038/183742a0
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DOI: https://doi.org/10.1038/183742a0
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