On 12/19/05, William Beaty <[EMAIL PROTECTED]> wrote:
See below!
---------- Forwarded message ----------
Date: Sun, 18 Dec 2005 22:35:07 -0600
From: Brian Whatcott <betwys1@>
Reply-To: Forum for Physics Educators <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: Electroluminescence Demo
Mix 1 tablespoon baking soda in 1 pint water.
Cut two electrodes from an aluminum pie dish
Place the elctrodes on opposite sides of a jam-jar.
Connect the electrolytic cell in series with a 75 watt lamp
to a 120 volt AC line supply - or better, through a 1:1
isolation transformer. Care!
The light quickly dims.
In a dark room, the electrodes glow.
See < http://home.earthlink.net/~lenyr/borax.htm>
What is the mechanism?
Brian Whatcott Altus OK Eureka!
--
"Monsieur l'abbé, I detest what you write, but I would give my life to make it possible for you to continue to write" Voltaire
