[TheForge] WAS: BLACKSMITHING CHAT WITH OLD FRIENDS - Bridge

Sun Jun 23 20:03:00 2002

They are not "walking across it", they were trying to get off it.

Darrell

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----- Original Message -----
From: "Ray Miller" <[email protected]>
To: <[email protected]>
Sent: Sunday, June 23, 2002 3:29 PM
Subject: [TheForge] WAS: BLACKSMITHING CHAT WITH OLD FRIENDS - Bridge

> I believe it to be "Galloping Girtie" the Seattle Tacoma Bridge. There
> is film of it oscilatting prior to collapse. There are actually some
> fools walking across it!!!
>
> On the topic of "engineers" having received my degree in Fluid and
> Thermal Sciences I can legitimately dodge the label of "engineer". In
> good conscience I consider myself a wayward mechanical engineer. Doesn't
> mean anything really except that I spent 4 good years of earning
> potential, learning how to solve problems using the "scientific method",
> along with some tricky calculus, way out physics and plenty, and I do
> mean plenty of BEER!!
>
> If I had it to do over again? Probably would have started metal mangling
> much earlier, but probably would not have changed much in the
> professional/technical world. (Gained some great experience,
> irreplacable training, and in the long run, enjoyed it).
>
> Ray Miller
> Cincinnati
>
> Jeff Harding wrote:
>
> >Ralph;
> >
> >   I recall the same bridge, they have a photo of it just as it
> >collapsed and the road bed was in the shape of a perfect sine wave.
> >Can't remember where it was either.
> >
> >   Jeff   ><>
> >
> >----- Original Message -----
> >From: "Ralph" <[email protected]>
> >To: <[email protected]>
> >Sent: Sunday, June 23, 2002 10:46 AM
> >Subject: Re: BLACKSMITHING CHAT WITH OLD FRIENDS was:[TheForge]
> >WHATTHE HELL
> >
> >
> >>>
> >>>        Huh... I would never have associated the desireable
> >>>
> >qualities
> >
> >>>        of a sword with vibration.  Weight, "balance", cutting
> >>>
> >ability,
> >
> >>>        yes.
> >>>
> >>Because you did not really read the statement. Vibration is was not
> >>
> >being
> >
> >>touted as a good thing.  But the vibrations node location was
> >>
> >decidedly
> >
> >>important. All things vibrate. It is the nature of things. If a long
> >>
> >item
> >
> >>is not designed with the thought of the vibrations taken into
> >>
> >account you
> >
> >>will have problems. For example, the suspension bridge that started
> >>
> >to rock
> >
> >>in the wind until it finally collapsed. . Right now I can not
> >>
> >remember when
> >
> >>and where this was...  IIRC it was Washington State and in the
> >>
> >'40s......
> >
> >>But the point was that the vibratory node location is very
> >>
> >important.
> >
> >>
> >>Ralph
> >>
> >>
> >>"Good is the enemy of Excellent. Talent is not necessary for
> >>
> >Excellence.
> >
> >>Persistence is necessary for Excellence. And Persistence is a
> >>
> >Decision."
> >
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> >>
> >>
> >
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> >
> >
> >
>
>
>
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