Author Topic: Ben Heck wires Mains into breadboard - Can we do something about this!?  (Read 9823 times)

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Offline tggzzz

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Re: Ben Heck wires Mains into breadboard - Can we do something about this!?
« Reply #50 on: March 19, 2017, 04:26:56 pm »
Quote
For my daughter, that meant letting her do activities where she watched someone die, where an acquaintance died, and where she has coped with finding herself in a potentially lethal situation that made grown men literally go white when they heard about it. We also backpacked around India together, which meant that when she took herself off to the other side of the world between school and university, I wasn't worried.

So, to reiterate, make sure the youngsters know how to assess the risks, and avoid the Dunning-Kruger syndrome.

I can hear this poster's daughter groaning "Oh not another lecture."

Not at all; in one of the activities she repeatedly put herself in a position that, if she and her instructor did nothing to recover, she would be "strawberry jam" in ~10s. The situation that caused grown men to turn white was one where there was a high probability that she would have been prevented from recovering.

I repeatedly said she didn't have to continue if she didn't want to, but she was enjoying herself too much.

The only groans I received were "stop wrapping me in cotton wool". A few years later, when at university, she volunteered that - having seen other students - she realised I most definitely hadn't wrapped her in cotton wool :) Shades of "When I was 14 I thought my father was an idiot. When I was 21 I thought he had learned a lot in the previous 7 years".

But here's a key point: I egged her on because I knew her personality. I might have held a different child back, depending on their personality.

In a youtube video you cannot know the viewer's personality and experience. You have to behave accordingly.
« Last Edit: March 19, 2017, 04:28:39 pm by tggzzz »
There are lies, damned lies, statistics - and ADC/DAC specs.
Glider pilot's aphorism: "there is no substitute for span". Retort: "There is a substitute: skill+imagination. But you can buy span".
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Online Zero999

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Re: Ben Heck wires Mains into breadboard - Can we do something about this!?
« Reply #51 on: March 19, 2017, 07:43:52 pm »
This is the first Ben Heck video I've seen. I agree it's very amateurish and slap dash. I can't say I've learned much but there are plenty of worse videos on YouTube.

As far as mains on breadboard is concerned: it's not inherently dangerous and the layout isn't that bad. The mains is only on one half of the breadboard which should have enough clearance from the control side.

Everyone knows that mains voltage electricity is dangerous and that it can kill so is a disclaimer really necessary? I can see why many people think a warning is a good idea but I don't think it would make any difference.
 

Offline dmills

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Re: Ben Heck wires Mains into breadboard - Can we do something about this!?
« Reply #52 on: March 19, 2017, 07:58:19 pm »
Seems to me that one of the more essential life skills that kids need teaching is "Figure out when the stuff on the internet is Accurate and Complete information" (Also an essential skill when reading datasheets!). It should really be taught in school along with critical thinking skills, but it is usually left to the parents.

Mr Hecks youtube videos are very much not to my taste, and IMHO fail on this test but they are not the worst things out there, some chemistry videos are truly scary for epic fails in the reaction kinetics department, and don't get me started on safe lab practice or the lack of it.

Regards, Dan.
 

Offline tggzzz

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Re: Ben Heck wires Mains into breadboard - Can we do something about this!?
« Reply #53 on: March 19, 2017, 08:32:09 pm »
Everyone knows that mains voltage electricity is dangerous and that it can kill so is a disclaimer really necessary?

The interesting question is how safe/dangerous, and what isn't acceptable?

People pick up bad habits by watching other people "get away" with it this time, and not thinking about how close they came to an accident. In formal situations, there is even continual rechecking by outsiders that bad habits aren't creeping in.

Quote
I can see why many people think a warning is a good idea but I don't think it would make any difference.

A warning is never going to be sufficient, but nonetheless it is necessary.
There are lies, damned lies, statistics - and ADC/DAC specs.
Glider pilot's aphorism: "there is no substitute for span". Retort: "There is a substitute: skill+imagination. But you can buy span".
Having fun doing more, with less
 

Offline KE5FX

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Re: Ben Heck wires Mains into breadboard - Can we do something about this!?
« Reply #54 on: March 19, 2017, 08:42:23 pm »
Seems like a fairly simple point of courtesy.  If you're doing something unsafe or ill-advised in a YouTube video, you should at least mention that no one should imitate what you're doing.

My all-time favorite is Shahriar's video on The Signal Path where he's repairing the LO section in a really nice network analyzer.  He goes out of his way to wear an ESD wristband, and when he forgets to put it on, he calls attention to his mistake.  Then, a couple of minutes later, we see his cat dart across the workbench.  :popcorn:
 

Offline tggzzz

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Re: Ben Heck wires Mains into breadboard - Can we do something about this!?
« Reply #55 on: March 19, 2017, 09:18:55 pm »
Seems like a fairly simple point of courtesy.  If you're doing something unsafe or ill-advised in a YouTube video, you should at least mention that no one should imitate what you're doing.

My all-time favorite is Shahriar's video on The Signal Path where he's repairing the LO section in a really nice network analyzer.  He goes out of his way to wear an ESD wristband, and when he forgets to put it on, he calls attention to his mistake.  Then, a couple of minutes later, we see his cat dart across the workbench.  :popcorn:

Just so.

Knowledge of your mistakes and the openness to admit them are a hallmark of competence and maturity.
There are lies, damned lies, statistics - and ADC/DAC specs.
Glider pilot's aphorism: "there is no substitute for span". Retort: "There is a substitute: skill+imagination. But you can buy span".
Having fun doing more, with less
 

Offline Don Hills

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Re: Ben Heck wires Mains into breadboard - Can we do something about this!?
« Reply #56 on: March 19, 2017, 10:26:40 pm »
... We CAN post warnings on his videos when he fails to do so ...

I believe this is likely the most practical plan of action.
 

Offline radar_macgyver

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Re: Ben Heck wires Mains into breadboard - Can we do something about this!?
« Reply #57 on: March 20, 2017, 02:03:29 am »
Then, a couple of minutes later, we see his cat dart across the workbench.  :popcorn:
Ah, but how did you know the cat wasn't wearing an ESD-safe harness?

Edit: hit enter too soon
 

Offline station240

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Re: Ben Heck wires Mains into breadboard - Can we do something about this!?
« Reply #58 on: March 20, 2017, 03:08:04 am »
Then, a couple of minutes later, we see his cat dart across the workbench.  :popcorn:
Ah, but how did you know the cat wasn't wearing an ESD-safe harness?

Clearly Ben's cat is double insulated, for safety.
 

Offline Red Squirrel

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Re: Ben Heck wires Mains into breadboard - Can we do something about this!?
« Reply #59 on: March 20, 2017, 03:49:18 am »
My cat is the reason I turn mains stuff off the instant I am away from the work area.  :-DD

 
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Offline james_s

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Re: Ben Heck wires Mains into breadboard - Can we do something about this!?
« Reply #60 on: March 20, 2017, 05:57:46 am »
I'm not really a fan of his videos but I'm not too worried about the safety either. I've done the same thing myself a few times, not saying I recommend it but I don't consider it a huge deal either. I once built most of a ~600W SMPS on a solderless breadboard, the only thing separate was the voltage doubler and bulk filter capacitors supplying the 340V bus. Given it was to power a dental xray head I figure the HV on breadboard was probably the least of the potential safety issues.
 

Offline SeanB

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Re: Ben Heck wires Mains into breadboard - Can we do something about this!?
« Reply #61 on: March 20, 2017, 07:56:19 am »
My cat is the reason I turn mains stuff off the instant I am away from the work area.  :-DD



You never seen a cat resting nicely on top of an oven, enjoying the warmth, while all around you can only smell slightly toasted fur. Dogs the same, just some do not learn from it.
 

Offline tggzzz

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Re: Ben Heck wires Mains into breadboard - Can we do something about this!?
« Reply #62 on: March 20, 2017, 08:07:45 am »
I'm not really a fan of his videos but I'm not too worried about the safety either. I've done the same thing myself a few times, not saying I recommend it but I don't consider it a huge deal either. I once built most of a ~600W SMPS on a solderless breadboard, the only thing separate was the voltage doubler and bulk filter capacitors supplying the 340V bus. Given it was to power a dental xray head I figure the HV on breadboard was probably the least of the potential safety issues.

Thinking about relative micromorts is always useful :)

But did you "do that behind closed doors with consenting adults", or did you film it and post the video where anybody of whatever competence/experience can be "inspired" by it? There is a difference :)
There are lies, damned lies, statistics - and ADC/DAC specs.
Glider pilot's aphorism: "there is no substitute for span". Retort: "There is a substitute: skill+imagination. But you can buy span".
Having fun doing more, with less
 
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Offline CJay

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Re: Ben Heck wires Mains into breadboard - Can we do something about this!?
« Reply #63 on: March 20, 2017, 09:44:25 am »
I'm not really a fan of his videos but I'm not too worried about the safety either. I've done the same thing myself a few times, not saying I recommend it but I don't consider it a huge deal either. I once built most of a ~600W SMPS on a solderless breadboard, the only thing separate was the voltage doubler and bulk filter capacitors supplying the 340V bus. Given it was to power a dental xray head I figure the HV on breadboard was probably the least of the potential safety issues.

Thinking about relative micromorts is always useful :)

But did you "do that behind closed doors with consenting adults", or did you film it and post the video where anybody of whatever competence/experience can be "inspired" by it? There is a difference :)

That's the big difference, I have done truly shocking (literally and figuratively) things on the various benches I've worked on over the years and will no doubt continue to do so but if I were to record them and post them publicly where they could be viewed by anyone who might be unaware of the potential (sorry) risks I would most definitely think twice and add a warning of the dangers.
 


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