If you look at the frequency dependence of the 'fibrillation threshold' (the minimum energy needed to induce ventricular fibrillation), it turns out that 60 Hz is just about optimum.
Joe -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of J. Forster Sent: Monday, November 28, 2011 10:41 PM To: Chris Albertson Cc: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Line Voltage frequency Interface morphed to batteries > Another pathological example is the implanted pacemaker. How much > voltage does it use. I bet way less then what's inside a 9V battery. > But the location and the firm contact it makes means very little > voltage is required. Maybe. I'd guess a 5-40 V pulse. The 48V "battery" in POTS phone systems can kill, I believe, especially if the person's hands are wet and salty. > One of the odd things about humans is that compared to other animals > we are very tolerant of electrocution. The resistance of dry skin limits the current greatly. -John ============ _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
