Or use it to stop blood flow while operating in an area | Hacker News

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		splike on Jan 2, 2014 \| parent \| context \| favorite \| on: Machine that Levitates Objects Using Sound [video] Or use it to stop blood flow while operating in an area

toomuchtodo on Jan 2, 2014 [–]

Did.....did we just suggest forcefields?

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