Re: vibrating bar supported by light string to reduce damping

[Herbert H Gottlieb <herbgottlieb@JUNO.COM>]

John Denker is to be commended for the best advice
I have ever seen on this network!

Herb Gottlieb
 From New York City


On Fri, 01 Oct 2004 10:33:05 -0400 John Denker <jsd@AV8N.COM> writes:
> Michael J. Moloney wrote:
> > A paper of mine on bar vibrations is being reviewed, and the
> reviewer
> > would like me to provide a reference for light string (or sewing
> thread)
> > to markedly reduce damping and permit one to observe the
> vibrations over
> > an extended time (many seconds).
> >
> > This technique was probably used a century or more ago, but my
> searches
> > so far have not turned up anything. I do recall reading about
> using
> > light threads to support a long wire and bringing the threads
> close to
> > the ear so one could hear quite rich tones from the long wire.
> That may
> > have been in The Physics Teacher.
>
> While you're at it, don't forget to cite Thag, the person who
> invented the metal bar, and Oona, the person who invented thread.
>
> :-)


Herb Gottlieb from New York City
A friendly  place to live and visit