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undamped bridge oscillations



At 08:45 AM 12/8/00 -0500, Chuck Britton wrote:
> John, you are then AGREEING that Galloping Gerty is an
>example of resonance? (yes/no)

Where does this "yes/no" come from?

I didn't realize I was scheduled for cross-examination today. Lawyers may
be allowed to demand yes/no answers -- but only of hostile witnesses, and
they have to get permission first.

I have a long-standing policy of not answering yes/no to misleading questions.

What I actually said (09:39 PM 12/7/00 -0500) was
>The bridge presumably had a fairly high-Q resonance even in
>no-wind conditions. A high-Q bridge or flagpole is vulnerable to
>high-amplitude excitation by mischievous adolescents. But that is far from
>being the whole story of this bridge. The interesting part of the story is
>to explain why the damping decreased to zero or beyond when the wind came up.

and I stand by that.