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[Merged] Real-Life 'Tractor Beam'


Anomalocaris
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Real-Life 'Tractor Beam' Can Levitate Objects Using Sound Waves

It may seem straight out of "Star Trek," but it's real: Scientists have created a sonic "tractor beam" that can pull, push and pirouette objects that levitate in thin air.

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Star Trek-style tractor beam becomes a reality: Device can lift and move small objects using sound 'holograms'

Array of loudspeakers produce an acoustic 'hologram' to hold an object

This allows small objects to be lifted, moved, rotated and fitted together

Sadly it will not work in space as sound does not travel in a vacuum

Instead it may find uses in the electronics industry or in delicate surgery

http://www.dailymail...l#ixzz3ps0t2JkE

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40kHz is at the threshold of a dog's hearing but will certainly annoy cats who have an octave greater hearing capability than dogs.

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So where is my sonic screwdriver at?

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This isn't exactly new...acoustic levitation of water droplets has been around for quite some time now. Researchers were able to demonstrate fine-tune movement capabilities as well, by combining droplets of water and coffee grounds (essentially making coffee with sound!)

Cool stuff :)

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Scientific advances, from all disciplines, truly amaze me every day.

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Since when was a sound wave a beam?

My thought as well . Wont work in a vacuum . Limited weight usage .

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My thought as well . Wont work in a vacuum . Limited weight usage .

Darn we will have to come up with another way to deflect killer asteroids!

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