Re:“Invisible Electrostatic Wall” at 3M adhesive tape plant ...
by tsomctl on Saturday February 03, 2018 @04:33PM
(#16299798)
Does anyone know how dangerous this actually is? Could an esd be big enough (basically lightning) to hurt or kill you?
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Re:“Invisible Electrostatic Wall” at 3M adhesive tape plant ...
by IntronExon on Saturday February 03, 2018 @04:54PM
(#16299893)
I don’t know about this case, but in general, yes, since as you said the concept covers everything from static shocks to a bolt of lightning. As always with electricity though, you can get profoundly lucky, or unlucky depending on a large number of factors.
A large VDG such as those in some science museums for example, could cook your noodle.
Re:“Invisible Electrostatic Wall” at 3M adhesive tape plant ...
by peter_d_sherman on Saturday February 03, 2018 @06:24PM
(#16300298)
On the one hand, this is theoretically true, but, on the other hand, as a person's electrical potential increases (or voltage, for lack of a better term), so does the range of space that the voltage will jump and ultimately dissipate to. The jumping is not the problem -- it's what it's jumping to. Metal or Grounded metal (especially if there's a lot of it) would be the worst thing, but what if instead of grounded metal you had a material with enough resistance to safely dissipate the energy, like some kind of carbon/plastic thingy? Also, you might ask why regular static electricity doesn't kill anyone. You'll get a static shock if you're charged high enough and touch metal, but other items -- you won't get any shock. But what's really happening there? Aren't they acting as resistors but with some dissipation value?
Anyway, we need a greater understanding of this phenomena...
Re:“Invisible Electrostatic Wall” at 3M adhesive tape plant ...
by fest on Sunday February 04, 2018 @07:57AM
(#16302563)
People doing electronics cover their tables with medium-high resistivity material mats (high enough so it doesn't interfere with bare electronics, but not completely dielectric). The mats are grounded to Earth ground via 1 megaohm resistor.
From personal experience, static discharge against such material is a lot less painful than touching grounded metal objects.
Re:“Invisible Electrostatic Wall” at 3M adhesive tape plant ...
by viraptor on Saturday February 03, 2018 @06:39PM
(#16300348)
> An Australian man built up a 40,000-volt charge of static electricity in his clothes as he walked, leaving a trail of scorched carpet and molten plastic and forcing firefighters to evacuate a building.
https://forums.firehouse.com/forum/firefighting/firefighters...
Re:“Invisible Electrostatic Wall” at 3M adhesive tape plant ...
by Hello71 on Saturday February 03, 2018 @07:19PM
(#16300496)
https://en.wikinews.org/wiki/Australian_man_allegedly_ignite...
> Several unanswered objections mark the story as a possible hoax:
Re:“Invisible Electrostatic Wall” at 3M adhesive tape plant ...
by 8bitsrule on Saturday February 03, 2018 @07:49PM
(#16300596)
1. In winter, take any decent house anywhere with a severe winter climate.
2. Wait until it's -30F outside, open the doors to let that dry air in. Close the doors.
3. Heat the interior to +70F to make --extremely-- dry air.
4. Shuffle across the plastic carpet in leather-soled shoes.
5. Do NOT touch the metal door knobs.
Re:“Invisible Electrostatic Wall” at 3M adhesive tape plant ...
by IntronExon on Saturday February 03, 2018 @08:18PM
(#16300689)
Without meaning to, and without any of that I still managed to destroy a set of dimmer switches with a static shock from my finger, in winter. Boy did I feel stupid.