Too boring to read through, isn't it? I scanned part of it, and it sounds like the cylinder is a plastic soda bottle that will vibrate from sounds in the air. No need to "put" sound waves into the cylinder. And the needle (as I'm sure you saw) is fixed.
Jim On Dec 14, 2006, at 6:52 PM, Robert Wright wrote: > I don't get it. What's the difference? How does this one put the > soundwaves into the cylinder material? This just seems silly and > redundant. What am I missing? > > > ----- Original Message ----- From: "Scott Colgrove" > <[email protected]> > To: <[email protected]> > Sent: Thursday, December 14, 2006 4:27 PM > Subject: [Phono-L] Patent Search - tinfoil phonograph > > > Take a look at this patent. It is a 2001 patent for tinfoil > phonograph and method of recording/playback. > > http://www.google.com/patents? > vid=USPAT6185179&id=zOEGAAAAEBAJ&printsec=abstract&zoom=4&dq=edison > +tinfoil#PPA10,M1 >
