"Bob S." wrote in
oups.com:


wrote:
DV Nation is importing the popular Color Fusion "ShowerStory"
showerhead. It's embedded LED lights change the color of the water
coming out based on the water temperature! From Blue for cold to Red
for hot. No batteries, no wiring. Just twist it on the way you would
any other showerhead! It's powered by the water running through it.
Its a unique item. Check it out at www.dvnation.com. Its at the
bottom of the main page.

Electronics with no batteries & no wiring - just powered by running
water. A MIRACLE!
Or a micro hydro generator? Alien technology from the Roswell flying
saucer?



Piezoelectrics could easily generate enough V to power LEDs using water
pressure and a mechanism to pressure-pulse the piezo element.
Wiring would still be required,though.(unless you consider printed circuit
boards to not be "wiring".

--
Jim Yanik
jyanik
at
kua.net