161
   

Your Quote of the Day

 
 
Reply Sat 25 Jun, 2011 06:50 pm
Quote of the day: "If the person you are talking to doesn't appear to be listening, be patient. It may simply be that he has a small piece of fluff in his ear." ~ Winnie the Pooh
  • Topic Stats
  • Top Replies
  • Link to this Topic
Type: Discussion • Score: 161 • Views: 358,809 • Replies: 8,037

 
BumbleBeeBoogie
 
  3  
Reply Sun 26 Jun, 2011 11:18 am
@edgarblythe,
"According to the recognized, proven principles of aerodynamics, the bumblebee cannot fly because of the shape and weight of its body in relation to the total wing area. But the bumblebee doesn't know this, so it goes ahead and flies anyway."

My favorite quote because, like the Bumblebee, I've overcome most of the challenges I have faced all of my life. ---BBB


A lovely myth, but the reality is different:

The basic principles of bumblebee flight, and insect flight generally, have been pretty well understood for many years. Somehow, though, the idea that bees "violate aerodynamic theory" got embedded in folklore.

The story was initially circulated in German technical universities in the 1930s. Supposedly during dinner a biologist asked an aerodynamics expert about insect flight. The aerodynamicist did a few calculations and found that, according to the accepted theory of the day, bumblebees didn't generate enough lift to fly. The biologist, delighted to have a chance to show up those arrogant SOBs in the hard sciences, promptly spread the story far and wide.

Once he sobered up, however, the aerodynamicist surely realized what the problem was--a faulty analogy between bees and conventional fixed-wing aircraft. Bees' wings are small relative to their bodies. If an airplane were built the same way, it'd never get off the ground. But bees aren't like airplanes, they're like helicopters. Their wings work on the same principle as helicopter blades--to be precise, "reverse-pitch semirotary helicopter blades," to quote one authority. A moving airfoil, whether it's a helicopter blade or a bee wing, generates a lot more lift than a stationary one.

The real challenge with bees wasn't figuring out the aerodynamics but the mechanics: specifically, how bees can move their wings so fast--roughly 200 beats per second, which is 10 or 20 times the firing rate of the nervous system. The trick apparently is that the bee's wing muscles (thorax muscles, actually) don't expand and contract so much as vibrate, like a rubber band. A nerve impulse comes along and twangs the muscle, much as you might pluck a guitar string, and it vibrates the wing up and down a few times until the next impulse comes along.

β€” Cecil Adams
0 Replies
 
edgarblythe
 
  2  
Reply Sun 26 Jun, 2011 11:33 am
β€œHe lives the poetry that he cannot write. The others write the poetry that they dare not realise.”
Oscar Wilde

0 Replies
 
Irishk
 
  3  
Reply Sun 26 Jun, 2011 12:02 pm
Thanks to the Interstate Highway System, it is now possible to travel across the country from coast to coast without seeing anything. ~ Charles Kuralt
0 Replies
 
wayne
 
  2  
Reply Sun 26 Jun, 2011 06:24 pm
" Sooner or later, I tend to rub everyone the wrong way" Jack Burton
0 Replies
 
edgarblythe
 
  2  
Reply Sun 26 Jun, 2011 09:31 pm
"Before I knowed it, I was sayin' out loud, 'The hell with it! There ain't no sin and there ain't no virtue. There's just stuff people do. It's all part of the same thing.' . . . . I says, 'What's this call, this sperit?' An' I says, 'It's love. I love people so much I'm fit to bust, sometimes.' . . . . I figgered, 'Why do we got to hang it on God or Jesus? Maybe,' I figgered, 'maybe it's all men an' all women we love; maybe that's the Holy Sperit-the human sperit-the whole shebang. Maybe all men got one big soul ever'body's a part of.' Now I sat there thinkin' it, an' all of a suddent-I knew it. I knew it so deep down that it was true, and I still know it."
- Preacher Casey (Grapes of Wrath)
0 Replies
 
msolga
 
  3  
Reply Mon 27 Jun, 2011 07:40 am
Washing one's hands of the conflict between the powerful and the powerless means to side with the powerful, not to be neutral.
--Paulo Freire, educator (1921-1997)
0 Replies
 
edgarblythe
 
  3  
Reply Mon 27 Jun, 2011 04:34 pm
Allow the president to invade a neighboring nation, whenever he shall deem it necessary to repel an invasion, and you allow him to do so whenever he may choose to say he deems it necessary for such a purpose - and you allow him to make war at pleasure.
Abraham Lincoln

0 Replies
 
msolga
 
  3  
Reply Mon 27 Jun, 2011 08:11 pm
Never eat more than you can lift.
~miss piggy.
0 Replies
 
edgarblythe
 
  2  
Reply Tue 28 Jun, 2011 03:27 pm
"I'm gonna put a curse on you and all your kids will be born completely naked" - Jimi Hendrix



msolga
 
  2  
Reply Tue 28 Jun, 2011 07:38 pm
@edgarblythe,
I can not believe that war is the best solution. No one won the last war, and no one will win the next war.
- Eleanor Roosevelt


(Good morning, edgar! Smile )
edgarblythe
 
  2  
Reply Tue 28 Jun, 2011 07:43 pm
@msolga,
Morning????? It happens to be night!!!!!!







Very Happy
djjd62
 
  1  
Reply Tue 28 Jun, 2011 07:45 pm
@edgarblythe,
well, them upside down people is all mixed up Razz
msolga
 
  1  
Reply Tue 28 Jun, 2011 07:48 pm
@edgarblythe,
Of course it is, edgar.
Where you are. Smile

Where I am, it's a brilliant, new sunny day ... heading for lunch time.



And I'm hoping you & I will not be the only daily quoters!
Though our quotes are pretty damn good, you gotta admit! Wink
0 Replies
 
djjd62
 
  3  
Reply Tue 28 Jun, 2011 07:49 pm
"Things need not have happened to be true. Tales and adventures are the shadow truths that will endure when mere facts are dust and ashes and forgotten."
β€” Neil Gaiman
msolga
 
  1  
Reply Tue 28 Jun, 2011 07:49 pm
@djjd62,
Not at all dj!
We're a day ahead of you, for starters! Smile
0 Replies
 
edgarblythe
 
  2  
Reply Tue 28 Jun, 2011 08:39 pm
"Got to kick at the darkness 'til it bleeds daylight." ~ Bruce Cockburn
0 Replies
 
Lustig Andrei
 
  3  
Reply Tue 28 Jun, 2011 08:51 pm
@djjd62,
"A thing is not necessarily a lie just because it isn't necessarily true."
John Steinbeck, Cannery Row
0 Replies
 
msolga
 
  3  
Reply Wed 29 Jun, 2011 01:17 am
Maturity is a bitter disappointment for which no remedy exists, unless laughter can be said to remedy anything.
-Kurt Vonnegut, Cat's Cradle
0 Replies
 
djjd62
 
  3  
Reply Wed 29 Jun, 2011 04:22 am
"Being a writer is a very peculiar sort of a job: it's always you versus a blank sheet of paper (or a blank screen) and quite often the blank piece of paper wins."
β€” Neil Gaiman
 

Related Topics

 
  1. Forums
  2. » Your Quote of the Day
Copyright © 2019 MadLab, LLC :: Terms of Service :: Privacy Policy :: Page generated in 0.05 seconds on 10/14/2019 at 02:25:25