From: Don Stockbauer on 7 Aug 2010 09:37 On Aug 7, 1:04 am, George Hammond <Nowhe...(a)notspam.com> wrote: > On Sun, 01 Aug 2010 07:16:53 -0500, Tom Roberts > > > > > > <tjroberts...(a)sbcglobal.net> wrote: > >Y.Porat wrote: > >> about "sailing agisnst the wind' > >> it is an illusion!!! > > >You know as little about sailing as you do about physics or math -- i.e. NOTHING > >AT ALL. > > >There is no "illusion" about sailing upwind, and sailors do it all the time. Not > >directly upwind, mind you, but a good boat and crew can approach 45 degrees from > >directly upwind. Using alternate tacks the boat can have a long-term path going > >directly upwind. > > >BTW a modern sailboat on a reach can sail considerably faster than the wind. But > >no boat can do so when running before the wind. > > > If you don't know what these terms mean, look them up. They are > > standard sailing terms. > > >Tom Roberts > > [Hammond] > A cambered airplane wing can achieve a maximum lift > coefficent of nearly 2.0 Anybody know what the maximum > lift coefficient of an ordinary triangular sloop mainsail > might be? > ======================================== > GEORGE HAMMOND'S PROOF OF GOD WEBSITE > Primary sitehttp://webspace.webring.com/people/eg/george_hammond God and the Universe are identical memes (pantheism).
From: " SNIP PHYSICS HECKLER>" on 7 Aug 2010 14:52 On Sat, 7 Aug 2010 06:37:44 -0700
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