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I'd like to make some half-life measurements on water based foams. I have only simple instruments for it. Can anybody help me? I don't know the exact method that how to make this measurement correctly. And I also need the mathematical apparatus for it. I've found an article where the authors say that a dry foam decays logarithmically. Please help me if you know a method of measuring it accurately! Thanks a lot in advance!

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# Half life measurements on foams

**Physics Forums | Science Articles, Homework Help, Discussion**