Will bubble-powered microrockets zoom through the human stomach?

Scientists have developed a new kind of tiny motor -- which they term a "microrocket" -- that can propel itself through acidic environments, such as the human stomach, without any external energy source, opening the way to a variety of medical and industrial applications. Their report describes the microrockets traveling at virtual warp speed for such devices. A human moving at the same speed would have to run at a clip of 400 miles per hour.

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