Re: [Phys-L] A beautiful (short) demo for sound and waves...

[Paul Nord <paul.nord@valpo.edu>]

That's a beautiful video.  You clearly see the Helmholtz resonance mode.
Notice how most overtones damp out quickly after the bow is lifted off the
string.  Just the fundamental and a couple of harmonics clearly ring.

Paul

On Fri, Aug 26, 2016 at 11:17 AM, Dan Beeker <debeeker@comcast.net> wrote:

> Slip - stick - Definitely not a sine wave! Nice video.
>
> Dan
>
> > Date: Thu, 25 Aug 2016 18:11:16 -0700
> > From: "Derek McKenzie" <derek@physicsfootnotes.com>
> > To: phys-l@phys-l.org
> > Subject: [Phys-L] A beautiful (short) demo for sound and waves...
> > Message-ID:
> >       <20160825181116.941725d6a6fe87b632a3484f7e5c2b
> cf.6305af42b4.wbe@email19.godaddy.com>
> > Content-Type: text/plain; charset="utf-8"
> >
> > When my 9 year old daughter didn't believe that the musical instruments
> > she practices so diligently all work by vibrations, I showed her this
> > superb slow motion footage of a vibrating violin string...
> >
> > http://physicsfootnotes.com/physl-vibrating-string
> >
> > It seemed to do the trick, as she then played the whole video through
> > several times over ;-)
> >
> > It is definitely worth showing your class the whole mesmerizing video
> > (it's only a few minutes long).
> >
> > Cheers,
> >
> > Derek
> >
> > Derek McKenzie
> > PhysicsFootnotes.com
>
> _______________________________________________
> Forum for Physics Educators
> Phys-l@www.phys-l.org
> http://www.phys-l.org/mailman/listinfo/phys-l