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On Jul 16, 10:44*am, thumper wrote:
On 7/16/2012 4:38 AM, Tim wrote: On Jul 16, 1:33 am, thumper wrote: On 7/15/2012 2:47 PM, Tim wrote: Definite articles of faith. Like the absurdity of Bumblebees flying (they ain't supposed to, y'know)... That's a fallacy Tim. http://www.straightdope.com/columns/...odynamically-i.... But, *even that explanation has been held in question. http://plus.maths.org/content/buzz-bumblebees "Based on these experiments we concluded that the [Cambridge] hypothesis cannot explain the attachment of the vortex throughout the stroke," said Professor Dickinson. So how does the bumblebee fly? "We still don't know for sure" - and the bumblebee flies anyway. "The data support an alternative hypothesis—that downward flow induced by tip vortices limits the growth of the leading-edge vortex." James M. Birch & Michael H. Dickinson http://www.nature.com/nature/journal.../412729a0.html Oh I know they can fly, but there seems to be just as much study data supporting the unknown as there is supportive proof. IMHO it's up for grabs. |