First of all, thanks to all who helped me with my search for info on the
Tacoma Bridge disintegration. I got lots of pics, and a few different
theories too.
I would like a few comments from the list on the following three points if
it isn't too much trouble.
(a) I have in mind producing some sound vibrations that would be 'in tune'
with the earth. I have read a lot on this and a lot of different
frequencies are quoted. Does anyone out there have a view on which of these
is 'correct' or any other numbers they would like to toss in the ring. In
particular my research is to do with anti-gravity. So you can add
vibrations that would be 'in tune' with the earth's gravitational force as
well. (would they be the same?).
(b) Also I would appreciate any suggestions on what sort of machine would
be best to produce such vibrations. I would prefer something I can just
plug in. I'm not that handy at building things. It would have to be able to
produce as near as possible a 'pure' note (i.e. one with as few tones as
possible), as well as have accurate frequency controls and displays.
(c) Unfortunately any point source produces a circular wave front. I want
to produce a flat (straight line) wave front about 4 to 6 feet wide, so the
traditional speaker would, I think, be of little use in this regard. The
only idea I can come up with is to use a parabolic reflector (like a
searchlight does with light) to produce a straight front, but this might
interfere too much with the clarity of the note. I'm not sure if there are
any other ways. Any ideas?
Ted Gallop
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Ted Gallop
Information Manager
University Planning Office
Curtin University of Technology
Phone: +61 8 9266 2246 Fax: +61 8 9266 2109
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