Making the Sound Barrier
A team of engineers from the Universities of Sussex and Bristol built a sonic tractor beam that uses sound waves to remotely manipulate objects. They can create three different shapes of acoustic force fields and use sound waves to wield tiny objects in the air. Anthony an Jeff are excited about the idea of force fields made out of sound, and discuss all the ways they would be able to use this to crush their enemies.
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Today’s story: http://www.csmonitor.com/Science/2015/1027/Scientists-create-acoustic-tractor-beam
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