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for your ears only


A company is testing a device that projects sounds up to a hundred feet away by transmitting two separate ultrasonic signals that combine at a particular source to create sound anywhere you want it. As usual with things that sound too good to be true, there are many skeptics. But if it's a hoax, it's a cool hoax.

Categories: technology
Posted by diego on August 8 2002 at 9:48 PM

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