Re: [Paddlewise] How a Kayak Turns (was: Mind Experiments ...)

From: Bob Myers <qajaqbob_at_gmail.com>
Date: Mon, 22 Jan 2007 13:46:53 -0800
On 1/22/07, Dave Kruger <kdruger_at_pacifier.com> wrote:
> Craig Jungers wrote:
> Remember that the water particles are move in a circular pattern:
> > up the back of a wave and down the face of a wave so that you would not just
> > be fighting gravity as you move across that wave-face.
>
> Aren't the water particles moving _up_ on the _face_ of the wave and down
> on the backside?  If they were moving down on the face of the wave,
> wouldn't the water level on the face be falling instead of rising?

No...  circular pattern, not just up and down.  At the top of the
wave, they move faster than the wave, forwards, and then down the
face.  Think about what happens when a wave breaks!  The top of the
wave is going too fast and can't complete the circle.
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Received on Tue Jan 23 2007 - 03:34:14 PST

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