Re: [Phys-L] What is a Wave?

["Dan L. MacIsaac" <danmacisaac@gmail.com>]

http://www.acs.psu.edu/drussell/Demos/waves-intro/waves-intro.html <http://www.acs.psu.edu/drussell/Demos/waves-intro/waves-intro.html>
and environs.  

Dan M

> On Feb 7, 2015, at 9:07 PM, John Denker <jsd@av8n.com> wrote:
>
> On 02/07/2015 06:17 PM, Bernard Cleyet wrote:
> > cables w/ differing impedance.
>
> Easy for me to build.
> Hard for intro-level student to get a feel for what's going on.
>
> With a rope or a torsion wave machine you can literally /feel/
> the wave ... as well as see it.
>
> These are kids who aren't real sure how to interpret an XY
> graph, let alone an oscilloscope trace, much less a time
> domain reflectometer trace.
>
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