fat separator jug – Adventures in Oceanography and Teaching

Taking the hydrostatic paradox to the next (water) level

mglessmer — Thu, 14 Apr 2016 16:06:53 +0000

How well do people understand hydrostatics? I am preparing a workshop for tomorrow night and I am getting very bored by the questions that I have been using to introduce clickers for quite a lot of workshops now. So I decided to use the hydrostatic paradox this time around. The first question is the standard […]

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When water doesn’t seek its level

mglessmer — Tue, 12 Jan 2016 06:37:55 +0000

Last week we talked about misconceptions related to hydrostatic pressure, and how water always seeks its level. Today I’m gonna show you circumstances in which this is actually not the case! We take the fat separator jug we used last week. Today, it is filled with fresh water, to which we add very salty water through the jug’s […]

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Water seeks its level

mglessmer — Thu, 07 Jan 2016 11:05:18 +0000

There are a lot of misconceptions related to hydrostatic pressure. One of them is that if you took a jug like the one below (or a U-tube, as in my post on letter tubes and misconceptions around hydrostatic pressure) the water level would have to be higher in the narrow snout of the jug than […]

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