
10-28-2015, 02:16 PM
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Join Date: Nov 2002
Location: Scottsdale, Arizona
Posts: 10,626
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Star Trek Tech: Tractor Beam
Earlier it was the "transporter" working on atomic particles, now it's a tractor beam using sound waves!
Real-life tractor beam levitates objects using sound waves - CBS News
By tightly orchestrating the release of these sound waves, it should be possible to create a region with low pressure that effectively counteracts gravity, trapping an object in midair. If the object tries to move left, right, up or down, higher-pressure zones around the object nudge it back into its low-pressure, quiet zone.
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