Comments by "Stephen Villano" (@spvillano) on "Dark Science" channel.

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  7. Nerve disruption kills an electocution victim? Good thing, that means we can toss the defibrillators into the trashcan! Given that the heart's conduction system is not based at all on nerves. By the standards stated here, that 100KV shock you get in winter from walking across the carpet is 100% lethal, every time! And yes, it is the current that kills. The current overwhelms signalling in both muscles and myocytes in the heart, leaving both contracted for the duration of the current flow. Disrupt the cardiac conduction enough, fibrillation occurs and the person does that dead thing. I've gotten hit by 45 KV, still around, as the current was low, so it was only painful. A taser delivers 50 KV, only a couple of hundred deaths are accounted for by taser. An electric chair delivered 2KV - 2.5KV at 7 - 12 amperes of current, both cooking the prisoner and fibrillating the heart, resulting in death. A short duration jolt may or may not cause fibrillation, as then it becomes a matter of timing, with around a 50 ms window within the QRS complex to trigger ventricular fibrillation. I drew around 3 amperes, as verified by the circuit designer, when insulation failed and I drew a 1.5 KV AC arc that had 130 V DC riding under it, the 130 V being the high current carrier. Blew the regulator, I survived after an escape beat restored normal heartbeat. Couldn't use my hands for much for a day, was sore for a week, still here. A longer, worse timed jolt, we'd not be communicating without a seance and since I don't believe in those, I'd not bother showing up. Draw around a half ampere of current and your muscles contract strong enough that you cannot release any grasped conductor. But, what would this old Army medic and certified electronics technician know about electrocution? Shall we discuss sodium vs calcium channels? The sodium-potassium pump?
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