Active EM Field Sensory
so after we all got our magnets... its time to move on.
while i build a microphone amp i noticed that those sneaky little electret mics are prone to electric fields.
with some cheap op-amps i was able to pick op the humming of powerlines in walls (20cm or so), my laptop ( >1meter), and all sorts of other electrical devices. only problem... the human body seems to shield them off quite well.
another idea would be to use active magnetic implants (a receiver coil, the amp circuit, output) to allow much weaker signals to be detected.
time to get the battery charger done... so the 2nd generation implants can be started.