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Index of Subjects --Apple-Mail-111--452415646 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Hi folks, On 28-Aug-07, at 10:07 AM, Bruce Stevens wrote: > Jean et al: > > > They all spiralled in the same direction, too, and I think it was > counter clockwise? Would that be correct in this hemisphere? > > The Coriolis force induced by the Earth's rotation, which IS > responsible for air currents in the two hemispheres flowing in > opposite directions, is orders of magnitude too small to force the > direction of rotation of flying ants or the water in toilet bowls. > > Wikipedia has a great page explaining the physics behind Coriolis > forces: > > http://en.wikipedia.org/wiki/Coriolis_effect > It is, indeed, and excellent article. It has a whole section pertaining to popular misconceptions with respect to the Coriolis force (draining bathtubs, sinks, & toilet, etc.) that clearly illustrates why such effects are impossible of the time and spatial scales involved. An excellent read! Cheers! Chris _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._ Christopher Majka <c.majka@ns.sympatico.ca> Electronic Resources on Coleoptera, Halifax, Nova Scotia, Canada http://chebucto.ca/Environment/NHR/coleoptera.html "Whenever I hear of the capture of rare beetles, I feel like an old warhorse at the sound of a trumpet" - Charles Darwin _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._ --Apple-Mail-111--452415646 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=ISO-8859-1 <HTML><BODY style=3D"word-wrap: break-word; -khtml-nbsp-mode: space; = -khtml-line-break: after-white-space; ">Hi folks,<DIV><BR><DIV><DIV>On = 28-Aug-07, at 10:07 AM, Bruce Stevens wrote:</DIV><BR = class=3D"Apple-interchange-newline"><BLOCKQUOTE type=3D"cite">Jean et = al:<BR><BR><BR><SPAN class=3D"gmail_quote"></SPAN><DIV><BLOCKQUOTE = class=3D"gmail_quote" style=3D"border-left: 1px solid rgb(204, 204, = 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">They all spiralled = in the same direction, too, and I think it was counter clockwise?=A0=A0Wou= ld that be correct in this hemisphere? </BLOCKQUOTE></DIV><BR>The = Coriolis force induced by the Earth's rotation, which IS responsible for = air currents in the two hemispheres flowing in opposite directions, is = orders of magnitude too small to force the direction of rotation of = flying ants or the water in toilet bowls. <BR><BR>Wikipedia has a great = page explaining the physics behind Coriolis forces:<BR><BR><A = href=3D"http://en.wikipedia.org/wiki/Coriolis_effect">http://en.wikipedia.= org/wiki/Coriolis_effect</A><BR = clear=3D"all"><BR></BLOCKQUOTE><BR></DIV><DIV>It is, indeed, and = excellent article. It has a whole section pertaining to popular = misconceptions with respect to the Coriolis force (draining bathtubs, = sinks, & toilet, etc.) that clearly illustrates why such effects are = impossible of the time and spatial scales involved. An excellent = read!</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 = class=3D"khtml-block-placeholder"></DIV><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 = <SPAN class=3D"Apple-converted-space">=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 = =A0 =A0 </SPAN><<A = href=3D"mailto:c.majka@ns.sympatico.ca">c.majka@ns.sympatico.ca</A>></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">Electronic Resources on = Coleoptera, Halifax, Nova Scotia, Canada</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"><A = href=3D"http://chebucto.ca/Environment/NHR/coleoptera.html">http://chebuct= o.ca/Environment/NHR/coleoptera.html</A></FONT></P> <P style=3D"margin: = 0.0px 0.0px 0.0px 0.0px; font: 12.0px Times; min-height: = 14.0px"><BR></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">"Whenever I hear = of the capture of rare beetles, I feel like</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">an old warhorse at the sound of a trumpet"<SPAN = class=3D"Apple-converted-space">=A0 </SPAN>- Charles Darwin</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">_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._= ._</FONT></P> </DIV><BR></DIV></BODY></HTML>= --Apple-Mail-111--452415646--
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Index of Subjects