Re: Coriolis

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From: JDP900
Date: Thu, 23 Dec 1993 15:28

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From kidsphere

  - - The original note follows - -

Date: Wed, 22 Dec 1993 20:11:14 EST
From: KIDSPHERE Mailing List <kidsphere@vms.cis.pitt.edu>
Subject: RE: Coriolis
To: KIDSPHERE Subscribers <kidsphere@vms.cis.pitt.edu>

Date: Tue, 21 Dec 93 16:43:30 EST
From: gregeb@clockwise.mh.att.COM (Greg E. Blonder)
Subject: RE: Coriolis

Although its true in principle that drains swirl counter clockwise
in the northern hemisphere, and clockwise in the south, real
bathtubs and sinks do not show this effect. The coriolis effect is
quite tiny compared to thermal currents or offsets due to slightly
out of level tubs. The most famous experiment along these lines was
performed by Ascher Shapiro at MIT (Nature, 196, 1962 p1080), and
repeated with various levels of skill since then. Its VERY hard to
detect the coriolis force in a bathtub!

        Greg Blonder
        AT&T Bell Labs

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Subject: Re: Coriolis
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