Random Thought Thread

ferider said:
It's not all about Voltage. Cattle wire has about 2-4 kV. Pee against it - it won't kill you. Come back and report.
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It absolutely is all about voltage

Cattle wire might have 4,000 volts to ground with no load on it, but as soon as you put any current against it, it drops instantly, that's not the actual voltage, in use. If it was delivering and sustaining 4,000 volts (continuous) as it was lighting you up it would absolutely kill you right now but there is a huge voltage drop because the power supply can't sustain it. And this is my point. It is voltage that makes electricity dangerous. It is a trivial amount of current to kill a person, and it is voltage that matters.
 
There's electric fence... and there's ELECTRIC fence. I got used to going under electrobraid lines charged by a solar popper with a 6 volt wet cell in it. Got me every now and then. Annoying, but not life altering. Tried the same stunt at a horse clinic where they had 1/ galvanized wire fencing b/ plug in fence chargers meant for keeping bulls inside a 10 mile run of fence and next/ wet dirt.

6 points of contact (two sets each of toes, knees, and palms) with wet dirt make for a pretty efficient ground. Which is where I wound up... on the ground with a mouthful of sand. I believe I exercised some colorful vocabulary.

Voltage similar between the two fence chargers, about 10kV open circuit. Ability to maintain current after my dumb ass closed the circuit was a *little* higher on the plug in one. I have to think it has to do with area under the curve, since power is voltage times current.

NOTHING compared rooting around in a CRT with a screwdriver.
 
Now I'm all thinking about dielectric breakdown strength of air and static electricity and mechanisms of death by electrocution and spark gaps and conductive paths through living flesh and defibrillation and stuff. Thanks guys, I was just enjoying some after dinner booze and now it has come to this.
 
That spindle was launched out of the machine tool, in pieces, so hard that Ben and I didn't even see or comprehend what was happening.

I was on that E stop button like a fat kid on a bag of chips, but that MoriSeiki goes from 0 to 60 like right now
 
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