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Registered Member #3429
Joined: Sun Nov 21 2010, 02:04AM
Location: Minnesota, USA
Posts: 288
Google "Electric Man" and you will get a lot of YouTube videos and websites about a man from India named Rajmohan Nair. He was featured on The History Channel's "Stan Lee's Superhumans". as well as a handful of other TV appearances. He claims that he can conduct high voltage/high current AC through his body to power such things as electric lights, heating elements, and electric motors. His demonstrations are impressive, but through the eyes of an experienced electronics buff like myself, I know that there has to be a trick to it.
This is how I believe he does it: He obviously cannot conduct 10 Amps of current through his body to heat an electric hotplate, but I know of a simple way that this trick can be done. He probably uses an opto-isolator driving a triac. The input circuit to the opto-isolator can be designed so that only very low voltage and current can trigger the circuit. The triac is what switches the high current device on and off, while his body receives only a few volts at a few microamps.
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
yes, i agree he cant possibly be conducting high current through his body while the greater Voltage drop remains across the appliance (needed to transfer reasonably high power). so i too suspect a small current is used to sense and switch the real circuit, however, without seeing him do this in person--certainty cannot be assertained. though i would like to see ammeter placed by me or another credible person in series with the wires in contact with his body, that would confirm or bust wether real power is going through his body.
I highly suspect this to be bogus.
also, i doubt at 120V, 10amps, that it would be the hot plate doing the cooking, i think more likely it would be his own organs, shortly before he croaked.
Registered Member #3429
Joined: Sun Nov 21 2010, 02:04AM
Location: Minnesota, USA
Posts: 288
Patrick wrote ...
yes, i agree he cant possibly be conducting high current through his body while the greater Voltage drop remains across the appliance (needed to transfer reasonbly high power) so i too suspect a small current is used to sense and switch the real circuit, however, with out seeing him do this in person certainty cannot be assertained. though i would like to see ammeter placed by me or another credible person in series with the wires in contact with his body, that would confirm or bust wether real power is going through his body.
I highly suspect this to be bogus.
also, i doubt at 120V, 10amps, that it would be the hot plate doing the cooking, i think more likely it would be his own organs, shortly before he croaked.
The truly sad and dangerous thing about this is the fact that TV shows, such as Stan Lee's Superhumans, promote this kind of trash as being authentic. The young man who investigated this guy (I recall his name was Danial) obviously knows little about electricity, and came to the conclusion that Electric Man is truly a Superhuman person. During his investigation, Danial went to a local hardware store and purchased a cheap multimeter. He then went back to Electric Man's home and confirmed that his Mains were actually the voltage what was claimed ( I don't recall if it was 120V or 240V), which of course says nothing about the devices that Electric Man was demonstrating. He also measured Electric Man's body resistance by placing the meter leads in each hand. Danial then commented, "You have TEN TIMES the resistance of other people!". Well, if he did in fact have ten times the body resistance of other people, then he couldn't possibly pass enough current to energize those high wattage devices.
Also, Electric Man used his own personal demonstration equipment. If I were the one interviewing Electric Man, I would have purchased a hotplate from the locale Walmart, and placed Mr. Electric Man in series with the power cord! I doubt that he would be smiling then!
Registered Member #2463
Joined: Wed Nov 11 2009, 03:49AM
Location:
Posts: 1546
What if the resistance between the two contact points was reduced so the path conductor heat dropped to a value akin to a pair of electric socks. Dont ask !!
Registered Member #2028
Joined: Mon Mar 16 2009, 08:13PM
Location: Norway
Posts: 319
Yeah...
Estimated 2kW electric hotplate, 220V 1phase.
220V^2 / 2000W = 24,2 Ohm
According to the National Institute for Occupational Safety and Health the resistance of a human body can be as low as 1000 ohms when wet, so sum resistance = 1024,2 Ohm.
220V / 1024,2 Ohm = 0,2A
Hotplate output: 24,2 Ohm x 0,2A^2 = 1,0W
Electric man output: 1000 Ohm x 0,2A^2 = 40,0W
Seems that egg would cook faster if he'd swallowed it
The truly sad and dangerous thing about this is the fact that TV shows, such as Stan Lee's Superhumans, promote this kind of trash as being authentic.
Dangerous is the right word. This show clearly implies that playing with electricity and high currents is perfectly safe, and particularly young people could be tempted to try this themselves. The results can easily be fatal. That, and the general dumbening effect it has on the population, is why am so deeply provoked by television shows like these.
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
yeah the 1000ohms thing is about right. but remember as soon as electricity is past the skin, internal human body resistence drops further, so lets say he and the hotplate were at 25 ohms each! half the heating power across him, half across the hotplate, his body would have to dissipate all that heat !!!
we could approximate the real experiment by powering hot plate with a wet hot dog, then again with a thyrisistor his bogus way. this would show not just what would happen, but also what is happening in the clip.
Renesis' qoute Two antennas got married, and the seremony wasn't much But the reception was exellent!
lol, i had an EE professor who used this kind of painful humor!
Registered Member #2915
Joined: Fri Jun 11 2010, 10:41AM
Location: Malaysia!
Posts: 101
Its funny how many people believe this... Using high school physics: 10X resistance would mean that ALMOST NO electricity would pass... this is obviously a hoax. If: I=V/R V= 240 R-(Lets say 10K))=10,000 Therefore: I= 0.024 Amps
Registered Member #1225
Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
I am the opposite of what this guy is supposed to be. I can (but don't) hold 120v in my bare hands and i feel next to nothing :). But that is no miracle, i just have calluses like a fricken farmer, being the grease monkey that i am. My resistance from one palm to the other is about 1.2Mohm if i lightly touch the DMM leads, and 1Mohm if i dig the points into the skin. Pretty normal .
That would mean his skin was about 100kohm... And to get that he probably washes his hands with salt water.
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Electric Man - Claims he's a human electrical conductor.
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