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Requested
in
Science & Technology
by
JFR
(
6,080
points)
edited
by
Dreamer
1 Idea
0
votes
Automatic Safecracker
An improvement on today's methods.
In the back of the latest issue of Popular Mechanics there was an article profiling a safecracker who helps police, banks, private companies, etc. crack open safes that they needed opened. The part I found hard to believe was his reliance on an amplifier and headset. Here's a quote - "Along with a light touch, amplifiers help LaBarge discern the minute mechanical discrepancies that give away the winning numbers." The part I found hard to believe was the reliance on the human ear to detect these discrepancies. It seems to me that it wouldn't be too hard to design a cup the at would fit over the dial and spin it, taking note of the sound each number emitted with a much higher degree of discernability than the human ear can muster. After the first spin most of the numbers would return a fairly common audio response. A couple of more spins should narrow it down a single number that gives off a unique signal. After that it would simply be a matter of turning the dial back and forth to find the same signal when its given off by the other numbers in the combination (being mechanical devices, the signal should be similar for each right number). Maybe this invention is baked though and the guy they profiled uses his ear because he gets paid by the hour.
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JFR
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