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[TowerTalk] Model-Reality disagreement; Examine, fix the model

To: baycock@direcway.com, w8ji@contesting.com, ChetMoore@cox.net,w5vx@hiline.net, towertalk@contesting.com
Subject: [TowerTalk] Model-Reality disagreement; Examine, fix the model
From: "Pat Barthelow" <aa6eg@hotmail.com>
Date: Thu, 17 Mar 2005 08:44:44 -0800
List-post: <mailto:towertalk@contesting.com>
>From: Bill Aycock <baycock@direcway.com>
>To: Tom Rauch <w8ji@contesting.com>, ChetMoore <ChetMoore@cox.net>,Bill 
><w5vx@hiline.net>, towertalk@contesting.com
>Subject: Re: [TowerTalk] C-31XR vs. 4 el. SteppIR
>Date: Thu, 17 Mar 2005 06:57:19 -0600

Origins of Bumblebee anecdote relative to applyiing the correct model to the 
reality...
From:
http://www.paghat.com/beeflight.html

Folks,
I found the following details on the Bumblebee flying/urban myth question:  
(edited slightly for space, full text at URL.)
The aerodynamic equations that explain airplane flight are based on 
steady-wing & not mobile-wing function. That a steady-wing airplane the size 
& shape of a bee will not fly has no bearing whatsoever or the vastly more 
complicated mobile-wing functions of insects.
Though the folklore began as a joke about a steady-wing flight equation 
foolishly applied to mobile-wing, as often seems inevitable of folklore, the 
joke took on its own separate life. Silly reasoning evolved, building 
fallacy upon fallacy: Bees can't fly because it takes rear-wings to steady 
the flight, & they have no rear wings so they should tumble through the air 
ass-over-teakettle. No, that's not it, bee's can't possibly fly because it 
is physically impossible for wings to beat as fast as bee's wings beat. No 
wait, bees can't fly because the texture of their wings is too flat, unlike 
a bird or an airplane designed like airfoil. Oh! No! Wait! Though bees can 
fly (because we've seen 'em do it) & it does follow physics, nevertheless 
science can't explain it, so there!
Well, actually, Navier-Stokes flight equations are applicable to bees, & 
were developed in the early 1800s. So all that is really true is this: most 
of us couldn't follow Navier-Stokes theories of motion even if a professor 
tried to make it simple for us, so we still have to make an emotional 
decision to embrace the strong probability that physics do govern the 
universe, or that physics have no applicability because God & magic rules 
the universe.


Someone Wrote:
The original statement is true. It is: If you analyze the Bumble Bee by the 
rules of classical aerodynamics, you will find that the Bumble Bee cant fly; 
However, the Bumble Bee does not
operate by the Rules of classical aerodynamics, so he can fly very well.
Reminds one of some of the discussions here; wrong model- wrong answer.
Bill

At 08:53 PM 3/16/2005 -0500, Someone wrote:

Remember the operative word here is "modeled"  in the
models, a bumble can't
fly
che n6zo

Che,
That actually is just one of those urban myths.
In the model and through calculations, a bumble bee can fly.

73 Tom


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