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What is the difference between no.1 and no.2? |
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And in universe, No 1. manages to remote control and
device, anywhere, ever. |
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As far as Hippo's link, I suspect it's not an issue. That's
mostly caused by middle and lower frequencies, high
amplitude, and constant use (hammer drills, jack hammers,
lawnmowers). An occasional use, high frequency, low
amplitude device is not likely a risk. |
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See link for several uses of a Dr. Who sonic screwdriver.
Every tool kit should have one. |
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