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

[John Denker <jsd@av8n.com>]

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.