turbulence


	turbulence
mp21k	Taking a close look at turbulence 9 September 2004 Scientists have moved a step closer to understanding turbulence -- often considered to be the last great unsolved problem in classical physics Stability theory predicts that the flow of a fluid through a straight pipe should remain smooth or "laminar" regardless of how fast the fluid is flowing. However, in practice it can become turbulent even at moderate speeds. Recently, theorists predicted that "travelling waves moving through the fluid at different speeds might be responsible for the onset and sustenance of turbulence," although there was no experimental evidence for this at the time.	040913
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.	http://physicsweb.org/article/news/8/9/6/1	040913
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a "Point"	Turbulence is common in nature -- it is found in weather patterns, river flows and many astrophysical environments	040913
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Ivan	For instance, Hurricane...	040913
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jpg	Ivan Spurs Evacuations Along Gulf Coast 56 minutes ago http://story.news.yahoo.com/news?tmpl=story&cid=519&ncid=716&e=1&u=/ap/20040914/ap_on_re_us/hurricane_ivan_florida The hard-to-predict Category 5 storm, one of the most powerful hurricanes ever to hit the Caribbean, killed at least 68 people in a devastating run through Barbados, Grenada, Jamaica and the Cayman Islands. At times along its wobbly path, forecasters had predicted Ivan could make direct hits on either the Florida Keys or populous South Florida, only to see it veer west and sidestep both areas. Louisiana, Mississippi and Alabama residents had thought they were in the clear, until Ivan shifted over the weekend and put them in the possible path. Hurricane Ivan is seen in this NOAA satellite image taken at 4:15 p.m. EDT, Monday, Sept. 13, 2004 http://us.news2.yimg.com/us.yimg.com/p/ap/20040914/capt.ny12509140247.hurricane_ivan_ny125.jpg	040913

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