Atmospheric Electricity Powers Small Motor [video]
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The crystal radios have a diode. Does the device have a diode? Does it work without the diode? Does it work if the diode is reversed? (The black thing in the right side of the motor looks like a diode, but I couldn’t distinguish the cathode bar mark.)
I’m not sure, but if this were based in atmospheric electricity, this should work even without a diode and don’t work if the diode is reversed. If this were based in RF, this shouldn’t work without a diode, but it shod work with the diode in the other direction.