[NatureNS] Pot vibration

References: <45B56AE4.8000904@glinx.com> <45B56DAD.9060106@ns.sympatico.ca> <45B63325.20107@glinx.com>
From: c.majka@ns.sympatico.ca
Date: Tue, 23 Jan 2007 12:42:19 -0400
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Hi Joan,

On 23-Jan-07, at 12:09 PM, David & Alison Webster wrote:

> Joan Czapalay wrote:
>
>> Would it turn counter clockwise in the Southern Hemisphere? Why or  
>> why not? Cheers, Joan
>>
> Hi Joan & All,                Jan 23, 2007
>    The Coriolis effect is limited to movement in relatively large  
> systems so I would not expect any change in direction.

Dave is correct. The Coriolis force is proportional to the radius of  
the rotation of the system in question so it manifests itself in the  
movements of huge systems (like the North Atlantic gyre or the  
movements of entire weather systems) but is several orders of  
magnitude too weak to be detectable in movements of pots or (as the  
popular conception has it) in the swirling of water in toilet bowls  
or sinks. ;->

The Wikipedia has a rather good (although somewhat technical) entry  
on the Coriolis Force at:

http://en.wikipedia.org/wiki/Coriolis_effect

Cheers,

Chris

_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._. 
_.
Christopher Majka - Nova Scotia Museum of Natural History
1747 Summer Street, Halifax, Nova Scotia, Canada  B3H 3A6
(902) 424-6435   Email <c.majka@ns.sympatico.ca>
_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._. 
_.


--Apple-Mail-82-137295240
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<HTML><BODY style=3D"word-wrap: break-word; -khtml-nbsp-mode: space; =
-khtml-line-break: after-white-space; ">Hi Joan,<DIV><BR><DIV><DIV>On =
23-Jan-07, at 12:09 PM, David &amp; Alison Webster wrote:</DIV><BR =
class=3D"Apple-interchange-newline"><BLOCKQUOTE type=3D"cite"><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; ">Joan Czapalay wrote:</DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; =
min-height: 14px; "><BR></DIV> <BLOCKQUOTE type=3D"cite"><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; ">Would it turn counter clockwise in the Southern =
Hemisphere? Why or why not? Cheers, Joan</DIV><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; =
min-height: 14px; "><BR></DIV> </BLOCKQUOTE><DIV style=3D"margin-top: =
0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Hi Joan =
&amp; All,<SPAN class=3D"Apple-converted-space">=A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 </SPAN>Jan 23, 2007</DIV><DIV style=3D"margin-top: 0px; =
margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><SPAN =
class=3D"Apple-converted-space">=A0=A0 </SPAN>The Coriolis effect is =
limited to movement in relatively large systems so I would not expect =
any change in direction.</DIV></BLOCKQUOTE></DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV>Dave is correct. The Coriolis =
force is proportional to the radius of the rotation of the system in =
question so it manifests itself in the movements of huge systems (like =
the North Atlantic gyre or the movements of entire weather systems) but =
is several orders of magnitude too weak to be detectable in movements of =
pots or (as the popular conception has it) in the swirling of water in =
toilet bowls or sinks. ;-&gt;</DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>The Wikipedia has a rather =
good (although somewhat technical) entry on the Coriolis Force =
at:</DIV><DIV><BR class=3D"khtml-block-placeholder"></DIV><DIV><A =
href=3D"http://en.wikipedia.org/wiki/Coriolis_effect">http://en.wikipedia.=
org/wiki/Coriolis_effect</A></DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>Cheers,</DIV><DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>Chris</DIV><DIV><BR><DIV> =
<P style=3D"margin: 0.0px 0.0px 0.0px 0.0px"><FONT face=3D"Times" =
size=3D"3" style=3D"font: 12.0px =
Times">_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._=
._._._.</FONT></P> <P style=3D"margin: 0.0px 0.0px 0.0px 0.0px"><FONT =
face=3D"Times" size=3D"3" style=3D"font: 12.0px Times">Christopher Majka =
- Nova Scotia Museum of Natural History</FONT></P> <P style=3D"margin: =
0.0px 0.0px 0.0px 0.0px"><FONT face=3D"Times" size=3D"3" style=3D"font: =
12.0px Times">1747 Summer Street, Halifax, Nova Scotia, Canada<SPAN =
class=3D"Apple-converted-space">=A0 </SPAN>B3H 3A6</FONT></P> <P =
style=3D"margin: 0.0px 0.0px 0.0px 0.0px"><FONT face=3D"Times" size=3D"3" =
style=3D"font: 12.0px Times">(902) 424-6435 <SPAN =
class=3D"Apple-converted-space">=A0 </SPAN>Email &lt;<A =
href=3D"mailto:c.majka@ns.sympatico.ca">c.majka@ns.sympatico.ca</A>&gt;</F=
ONT></P> <P style=3D"margin: 0.0px 0.0px 0.0px 0.0px"><FONT face=3D"Times"=
 size=3D"3" style=3D"font: 12.0px =
Times">_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._=
._._._.</FONT></P>  </DIV><BR></DIV></BODY></HTML>=

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