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more about #sound more comments → NotChoinski: Oh, please. more » twophrasebark: more » Garrison Dean: R.O.A.C.H.: A sonic black hole? Great now io9 has resorted to reporting on Miley Cyrus. more » Dillenger69: If there is no sound in a vacuum, how come vacuum cleaners make so much noise? more » bitgod: SUPERMASSIVE SONIC BLACK HOLE! Can't wait for a cone of silence. more » -
#madscience
Sonic Black Hole Swallows Every Sound It Hears
Imagine a giant tank that can roll into town emitting literally no sound. This could be the future of stealth warfare. Scientists have recently devised a "sonic black hole;" any sound that passes its edge can never come out again. More »
