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An Interesting Polygraph (Dupicator)
Posted: Tue May 10, 2011 7:51 am
by chris paulick
Does anyone else find this interesting or is it just me? It's Thomas Jefferson's polygraph used to copy his letters.
http://www.pointprojects.com/files/gimg ... motion.gif
Re: An Interesting Polygraph (Dupicator)
Posted: Tue May 10, 2011 8:24 am
by charangohabsburg
It's not just you. I like this pre-Xerox copier! Certainly some of us would like to see a dremel attached to it...
Thanks for the link.
Re: An Interesting Polygraph (Dupicator)
Posted: Thu May 12, 2011 11:07 pm
by auscab
Thats a beauty Chris, do you know if he made it ? or did he get someone to build it ?
I've seen a musical instrument that I think had something to do with TJ, dont know if he made it ,but it was a set of crystal bowls that rotated and it had a key board

hang on , better google it
Just looked it up, a Glass Armonica ,no keys just fingers on rotating glass bowls,invented by Benjamin Franklin, Thomas Jefferson liked it but did not buy one.
here is a link to a picture
http://images.google.com/imgres?imgurl= ... uQPS_aCABQ
and a link to some info on it
http://www.glassarmonica.com/armonica/a ... merica.php
and also a link to see and hear one
http://www.youtube.com/watch?v=eQemvyyJ--g
Rob
Re: An Interesting Polygraph (Dupicator)
Posted: Fri May 13, 2011 2:17 am
by chris paulick