Re:BrainNet: A Multi-Person Brain-To-Brain Interface for Dir...
by amelius on Wednesday September 26, 2018 @11:37AM
(#18077018)
Question: assume you have a closed hull around some domain D, and record the electric and magnetic fields E and H at the entire hull; at a later moment you prescribe E and H at the hull; will this setup regenerate the original values of E and H inside the domain D?
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Re:BrainNet: A Multi-Person Brain-To-Brain Interface for Dir...
by ckemere on Wednesday September 26, 2018 @12:28PM
(#18077604)
To maybe short-circuit your idea, magneto-encephalography (MEG) uses magnetic field sensors to sense brain activity. Coherent currents from ~100K neurons produce femto-tesla signals (about 1 billionth of the earth's magnetic field). This currently requires liquid helium cooled superconductors (though there is some work trying on nanofabricated room-temperature ultraprecise field sensors). To induce effects, the TMS magnets produce reasonable fractions of a Tesla.