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Re: [Phys-l] [PTSOS] Pendulum wave video



What is the pedagogical justification for construction?


bc thinks of some, but unlikely not what bill and Dan thinks.



On 2012, Jan 23, , at 14:09, Bill Taylor wrote:


I have had students make these (the Dona Rathjen / Exploratorium version) for extra credit. Just be advised if you do so, that it requires a good deal of time to tune it properly. Give them extra-extra-credit if they do that right!

- Bill



On Mon, Jan 23, 2012 at 11:25 AM, Dan Burns <DBurns@lgsuhsd.org> wrote:

This is a good one, I like the camera angle. For instructions on how to make one, see Don Rathgen’s website:

http://www.exo.net/~donr/activities/

Scroll down to Pendulum Snake.

If you have more money than you do time, you can get one for $100 here:

http://www.scientificsonline.com/pendulum-wave.html

Dan




On 1/23/12 11:04 AM, "Bill Taylor" <billt4phys@gmail.com> wrote:






A great Pendulum wave video

http://www.youtube.com/watch?v=yVkdfJ9PkRQ





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