Turns out the guys from MAKE, think this simple metal detector video is a fake. The reasoning is fairly complicated, anybody know an electrical engineer?
Seems like the calculator's internal clock (the only thing in the device which would produce a frequency) oscillates at about 450 kHz, where the radio is tuned to broadcast 1610 kHz. The engineers think the two devices would rarely produce a reliable Radio Frequency Interference (RFI).
Even proving the video a fake would make a good science project.
Tuesday, February 26, 2008
Update: Homemade Metal Detector
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