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Re: We got this much rain last night
Posted by Tim Edwards on July 7, 2016, 7:24 pm, in reply to "Re: We got this much rain last night"
I think you were right the first time. The diameter of the opening is the most important thing. If the glass were straight sided, it wouldn't be an issue. The measured amount of water in the glass would be the amount that fell (wind not withstanding). The opening is what catches the rain. Imagine if you were using a tuba........ you would catch lots of water and then it would pile up in the lower part.
That said......... we should have more important things on which to spend our time.