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Topic: Can anyone explain a ground loop, and when tieing grounds together is needed. (Read 1 time) previous topic - next topic

cr0sh

Scroll down to page 209, number three in the pink box.  Don't look inside your car battery using a match for light.  Thanks for the tip PopSci! :P


That's pretty funny - I think I missed that when I was reading that issue.

I've been reading the 1950s decade, starting from January 1950, for the past month and half or so; right now I am on August 1959. Reading the articles, you wouldn't believe some of the really insane (to our age) things people were doing. I think one of the "funniest" was the recommendation to put drops of mercury into the distribution posts of the distributor before plugging the spark plug cables in, to assure a good contact between the cable tip and the post contact! A future issue had an admonition from another reader not to do that. Why? Perhaps because the mercury would make a mess when you removed the cap? Or maybe it was an environmental hazard?

Nope - neither: Because it would corrode the brass fittings on the cable ends and in the distributor posts! Which I am sure is true, but they really weren't thinking about mercury being an issue. Same with asbestos (that was a complete unknown). Radiation had a "two-faced" reaction, at least from the vantage point of this magazine; on the one hand, nuclear power had to be carefully managed and dealt with (shielding, design, etc) - on the other hand, nuclear power (and radiation therapies, etc) were the "great-new-thing" (tm) - it seemed like it wasn't new unless it had some link to transistors or nuclear power (oh - another big thing during the mid-to-late 1950s for amateurs seems to have been hunting for uranium deposits - geiger counter kit ads and articles on how to build and use them have appeared regularly in the latter half of the decade).

:)
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Schmidtn

Ha!  For some reason when you said hunting for Uranium deposits was popular in the late 1950's the first thing that came to mind was Ward Cleaver smoking a pipe and telling Beaver to be careful with his Geiger Counter and to stay out of trouble while Beaver skips out the front door with one of his buddies on a Uranium hunt. 

Can't wait for people 50 years from now to look back at us and think, "What were they thinking?! Didn't they know how toxic handling transistors is?" Or whatever we're doing now that we really shouldn't be.

Grumpy_Mike

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Or whatever we're doing now that we really shouldn't be.

I think we know. Watching TV and eating fast food.

cr0sh


Ha!  For some reason when you said hunting for Uranium deposits was popular in the late 1950's the first thing that came to mind was Ward Cleaver smoking a pipe and telling Beaver to be careful with his Geiger Counter and to stay out of trouble while Beaver skips out the front door with one of his buddies on a Uranium hunt. 

Can't wait for people 50 years from now to look back at us and think, "What were they thinking?! Didn't they know how toxic handling transistors is?" Or whatever we're doing now that we really shouldn't be.


Oh, yeah - that's another thing - invariably, at least up through about 1958 or so, every man (unfortunately, that honestly is every "white" man - but that's another topic for another thread - that and the mysoginistic viewpoints from the era) picture seems to almost always have a pipe in their mouth. There's one interesting article about underground RF coaxial lines being spliced "delicately" by a repair guy; he's got a pipe in his mouth down in the trench!

Then - I guess the ball started to roll on how tobacco and smoking was causal for lung cancer and other ailments, and the number of those images have gone down past about 1958 - but they still pop up occasionally.

I'm going to continue to read the issues forward in time until the following three things occur: Model Garage disappears, Wordless Workshop disappears, and "how-to" articles disappear; I'm pretty sure they happen in that order, too, and the how-to articles likely drop out sometime around 1978 or so...

Finally - Grumpy_Mike: I think you've hit the nail on the head, so to speak; though likely more so on the latter than the former (western society loves it TV, and other than seemingly making some of us dumber, as far as we know it doesn't cause cancer or other illness).

:)
I will not respond to Arduino help PM's from random forum users; if you have such a question, start a new topic thread.

Grumpy_Mike

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and other than seemingly making some of us dumber

It is a bit more that that it is a sort of passyfier that saps the will and reduces the ability to think clearly and critically. I find a night in front of the TV makes you a lot more tired than almost any other activity.
I have done a lot of work for digital TV companies designing set top boxes and distribution systems and sometimes looking at the channels that were being distributed I felt like I was a heroin dealer.
I think it was Marx who said that the Church was the opiate of the people, that's nothing to TV.

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