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In article ,
cavelamb wrote: Alan Baker wrote: In article , cavelamb wrote: Alan Baker wrote: In article , cavelamb wrote: It's all trolling noise, and, to my mind, began with an incorrect assertion that one can not "pull" on air. http://www.northsailsod.com/articles/article6-1.html Air cannot pull on a surface. Any pressure at all means the air is *pushing* on the surface. That remains the reality, regardless of a website that uses less than precise language. You didn't even look. I did look, and I even read. It shows a diagram of "pressure" with the arrows pointed *away* from from the sail. Pressure doesn't act away from a surface. Alan, It's ALL about suction. And suction is actually higher pressure pushing something towards a region of lower pressure. -- Alan Baker Vancouver, British Columbia http://gallery.me.com/alangbaker/100008/DSCF0162/web.jpg |
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