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Using a 78 rpm turn table, the beam will circle the room in ~ one sec;_______________________________________________
w/ a c (256 or is it a C) fork, depending on the size of the room the
sine will be nicely resolved. I don't see the problem.
bc
Ludwik Kowalski wrote:
I would place a laser on the same rotating platform as the tuning fork
with a mirror in the vertical plane (on one of the prongs). In that .
. .