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solar powered Rainbow maker function ?

Started by hartiberlin, June 28, 2006, 02:03:43 PM

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hartiberlin

June 28, 2006, 02:03:43 PM
How does this solar powered  electric rainbow maker work ?

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=330000193589


Has somebody tried this and what does it exactly do ?
Many thanks.

Regards, Stefan.
Stefan Hartmann, Moderator of the overunity.com forum

exnihiloest

#1
June 29, 2006, 03:47:18 AM
Quote from: hartiberlin on June 28, 2006, 02:03:43 PM
How does this solar powered  electric rainbow maker work ?

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=330000193589


Has somebody tried this and what does it exactly do ?
Many thanks.

Regards, Stefan.

Hi,

A solar cell powers a small motor that let rotate a plastic (pseudo) cristal that diffracts light as a prism.
You put it against a window thanks to a suction cup. When direct sun light comes through, the cristal rotates and small moving spots of rainbow colors are projected onto the walls of the room.
It's not an artificial rainbow, just a gadget to wonder kids (two of mine have one :-).

Fran?ois



hartiberlin

#2
June 29, 2006, 04:13:39 PM
Ahh... I see... Many thanks for the info.
Sounds nice !
Regards, Stefan.
Stefan Hartmann, Moderator of the overunity.com forum
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