Watching this video leaves you not knowing whether to laugh or cry...
My chum Jay Dowling just sent me a link to a training video on YouTube. The presenter is showing the use of an electrostatic gun to verify the ability of electronic components and products to survive encounters with electrostatic discharge.
Unfortunately, the presenter doesn’t seem to know which end of an electrostatic gun is the "sharp end," although he soon finds out...
If you read the comments associated with this video you will see that some people think this is all staged (in which case the presenter must have an unnatural fascination with self-inflicted pain), while others think his actions were unintentional, but the film's editor left them in for laughs.
And lest you think that the presenter in the above video could not possibly be as inept as he appears to be, may I invite you to watch the following video. Suffice it to say that I don’t believe anyone can watch this without wincing and exclaiming "Oooohhhh" at least once...
But back to the first video – what do you think – ineptitude of the first order or staged?
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It's got to be a spoof - the guy couldn't have been that inept. OK, maybe he's an NRA supporter and he could be, but I don't believe the editor would have left that in a supposedly serious training video.
This reminds me of a slight incident 20 years ago. Testing an Xray generator LC resonator at a customer's site (US/Frog medical company).
Our Scotyland lab HV breakdown test kits all had inbuilt discharge. The frog one did not. Whilst reconnecting the M8 brass nuts with a spanner I managed to have both hands connected to each end of the resonator. ~8Joules discharge, spanner bounced off the 5m high concrete roof! RHS forefinger had marks displaying the "skin effect", a weekly experience whence probing HV prototypes - 6kV @ 100kHz (+ harmonics!) and also the HV side (upto 150kV).
A rather pleasant Indian engineer that I worked beside with described such white skin patches as "The skin effect".
Yup, this is most definitely a rather entertaining spoof.
P.S. I have been in a neural comma, off and in, for 19 months, so the brain is now just adjusting to being sentient again. Cycling is very bad for your health!!!
I was about to make an apology to the frogs, however why does LibreOffice Writer not go the full distance with readline?
It surely is an electronic version of jackass.
The circuit board he is "testing" is surely not a realistic test. ESD tests are done while running (the electronics that is, not the tester) and in the housing too see if the discharge current runs outside the critical components.
Well, you can't really SEE that, but you can see if it fails ;)
The first part of the video seems so obviously deliberate... but when the demo-guy finally takes the charged board from the desk, almost makes me cry!!!
I totally agree with you in that the video itself is in fact very educative for ESD newcomers
Definitely, the video is staged... or the guy is trying to kill himself !!
There are several videos in youtube in which Mehdi Sadaghdar does "risky demos". Below you've some examples:
Shorcutting a huge capacitor...
Playing with car batteries...
Well, I don't want to admit to my ineptness! But the 25K was true and I was zapped during taking the video. But I was well aware of it and my point was to make the video funny so the message sticks! Also I should say although it hurts, the 25K ESD is not as hazardous as it sounds. A tazer gun is around 50K I believe. If you slide over those plastic slides that are held with metal screws to ground, you will definitely feel the 25K ESD down there!
Mehdi - I understand what you are trying to do, but in viewing, this look to me to go past humorous in into dangerous, even if the ESD gun has a lower voltage than a Taser. I appreciate the value of humor in educational videos, but, personally, I'd rather see it come out in a different form.
There's a trend these days toward self-violence in videos and I don't think it's a healthy trend. Call me a spoil-sport, but when taken too far, such imagery detracts from the message. It becomes more a pure humor vehicle than an effective educational too.
Of course you are right when it is an actual dangerous act. But I don't consider a 25kV ESD from a certified gun a danger. Like I said, you can easily pick up 25kV sliding down one of those kid's slides in the parks. I might be crazy, but not that much that I would endanger my life!
Same here dear. Training and coahing become a part of our life as well as for an organization. These two are the step of learning and give us succes in our career. When the traing is in a video from is easily understood and more effective. It also appreciable. Thanks again. Career transition training and coaching
RE: Second video: Don't those young guys know enough to wear a cup, especially since they've probably seen similar videos before? However. if they up removing their own genes from the gene pool, their self-imposed Eugenics will be good for the human race in general in the long run.
RE: Static Testing:
Some time before the spring of 1980 our agency was having problems with static discharge sending terminals and printers for a loop in our District Offices. We wanted to buy static mats that took the static potential down to zero when one walked across them. One salesman protested our procurement, saying that his static mats would work even though the didn't take the voltage down to zero.
One of my co-workers contacted the (then) National Bureau of Standards (now NIST, the National Institute of Standards and Technology) to borrow some equipment to perform static testing. They loaned us a very high voltage static electricity generator connected to a carbon rod that was about a foot or more long and two or three inches in diameter (i. e., a big honkin' resistor), an electrostatic voltmeter (similar to an electrometer), and an insulated pedestal to stand on. We'd set the voltage level on the generator and charge ourselves up through the carbon rod, touch the voltmeter to check the level, then discharge ourselves into the equipment and watch it's reaction (like the printer printing strange characters). Then we'd recharge and walk across samples of the two types of mats available. Hey, just like a college physics lab experiment, including the notebook and report!
The good news is that we demonstrated the need for the mats that took static voltage down to zero. The bad news is that our having to perform all the testing gave the protesting vendor enough time to become a distributor for the mats we required. Now we know why there is a special place in Hell reserved for salesman in government procurements ...
Yeah, I watched the whole thing after work before leaving for the day. Most of the time I was screaming in my mind, "YOU DUMB SH**!" It's like watching an episode of Maury, which documents a similar segment of society. If The Aliens watch YouTube or Maury Povich before we sane ones get to make our case then we're all doomed; they'll sterilize the entire planet, re-seed it, and start over.
I do believe there must be intelligent life on other planets; there sure isn't much here!
Yes, but you forget that you daily stood on the precipice of disaster, calmly, cooly, and carelessly snatching a Hawaiian shirt from the jaws of a closet that was in unstable equilibrium and would one night release a tsunami of like 300 shirts. Of course without that kind of danger be darned Alfred E. Neumanistic attitude, we probably would never have sent a spaceship to the moon.