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2002-07-29
I wonder if it will work on a target 100 m away. If
it only works up to 100 yards away, that is like saying that it won't work up to
100 m as 100 m is 9 m farther than 100 yards.
Read entire article by clicking on link
below.
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Woody Norris wants to tell you something—and he can put the
words inside your head from 100 yards away. Is his invention sound, or
just a pipe dream?
The Hyper-Sonic Sound System (HSS), as he calls it, can take an audio
signal from virtually any source—home stereo, TV, computer, microphone,
etc.—and convert it to an ultrasonic frequency that can be directed like a
beam of light toward a target up to 100 yards away. |
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John
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