ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
*****************************************************************************

Correction. Light Fantastic is shown on the Discover Science Channel. 
Coming up again on the 20th.
See 
<http://science.discovery.com/tv-schedules/series.html?paid=48.15158.111804.28937.1>.

Wayne Watson wrote:
> ISEN-ASTC-L is a service of the Association of Science-Technology Centers
> Incorporated, a worldwide network of science museums and related 
> institutions.
> ***************************************************************************** 
>
>
> A couple more asides. NGC recently repeated Light Fantastic, one hour. 
> It does that on occasion, and is well worth watching. One of the 
> points the host makes is about what we know about light. From decades 
> ago, and maybe even presently, some science lecturer will ask the 
> question, "Do you know what light is?"  Invariably, someone or more 
> will innocently raise their hands. At that point, the lecturer will 
> embarrass them all by declaring that none of the great scientific 
> minds do, and then go onto some subject light spectra. However, 
> thankfully, the host of Light Fantastic demolishes that question by 
> explaining what we do know about that subject.
>
> I fun thing to do with the Doppler shift is to find a hollow plastic 
> ball that you can attach a string tightly. You want the ball to be 
> hemispherical with two halves. Put a 3 volt battery in it and attach a 
> Piezo crystal (Radio Shack?) across its leads, and put it inside the 
> ball. The crystal will be emitting a sound. Tape the ball securely 
> together, then swing it around your head. Anyone standing outside your 
> circle of rotation will hear the Doppler effect.
>

-- 

           Wayne Watson (Watson Adventures, Prop., Nevada City, CA)

             (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
              Obz Site:  39° 15' 7" N, 121° 2' 32" W, 2700 feet
            
                 "We are operating this planet like a business in
                  liquidation." -- Al Gore, 2006
            
                    Web Page: <www.speckledwithstars.net/>

***********************************************************************
For information about the Association of Science-Technology Centers and the Informal Science Education Network please visit www.astc.org.

Check out the latest case studies and reviews on ExhibitFiles at www.exhibitfiles.org.

The ISEN-ASTC-L email list is powered by LISTSERVR software from L-Soft. To learn more, visit
http://www.lsoft.com/LISTSERV-powered.html.

To remove your e-mail address from the ISEN-ASTC-L list, send the
message  SIGNOFF ISEN-ASTC-L in the BODY of a message to
[log in to unmask]