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As I am currently in a war zone, I don't have many options for cabling

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Re: As I am currently in a war zone, I don't have many options for cabling

#171

Post by philwelch »

paganel wrote: post #43
armchairhacker wrote: post #32

Daily reminder that online, someone well-off lying in bed with a nice bowl of soup can be talking with someone homeless in a third-world country with no chance of improvement whatsoever. Hopefully the OP in SE is not the latter and it's just a temporary situation, especially if they're in Ukraine and Ukraine wins.

For what it's worth the original poster seems to be from Sudan, another current (and more recent) war-zone. It's this part that made me think of that general area: > our concrete homes are not designed to be habitable without AC power. and a little web-searching confirmed it. The reason being that concrete-made buildings in Ukraine are definitely habitable right now without AC (I live in a concrete-made building myse…

Fun rule of thumb is that Baikonur Cosmodrome in Kazakhstan is at the same latitude as Moses Lake in eastern Washington. (Blue Origin used to have a rocket test facility in Moses Lake; another rocket startup is out there now. It’s unlikely to be used as an operational launch facility but it could reach ISS if it were.) Ukraine is slightly north of Kazakhstan on average so think northern US or Canada.

Re: As I am currently in a war zone, I don't have many options for cabling

#172

Post by cjbgkagh »

H8crilA wrote: post #159
sa46 wrote: post #140

Earlier quoted context omitted.

Around 2014 or so, we (light infantry) had field telephones on the books, but we only used them once for a field exercise to practice assuming all modern tech was down.

WW2 stories of diversions to enemy communications: put small needles through the cable. At first you'd think you just have to cut the cable, but that actually makes it very easy to find and fix the problem. Small needles that short the wires are very difficult to locate. Unless you have a fast device that measures return latency on the shorted circuit, but that wasn't available in the 1940s.

You can use binary search to find the pin. Unless two or more pins are used.

Re: As I am currently in a war zone, I don't have many options for cabling

#173

Post by lucumo »

bragr wrote: post #132
netsharc wrote: post #92

Earlier quoted context omitted.

Depressing world facts in April 2023: "I'm in a war zone." "Oh yeah, which one?" At least in March 2023 it was "slightly better" that people would go straight to assuming the answer is "Ukraine". Any other active wars going on[1]? Maybe Myanmar.. [1] Result for "active wars in 2023" gives me a page of potential conflicts: https://www.cfr.org/report/conflicts-watch-2023

>"Oh yeah, which one?" I mean, when has there ever not been several regional wars going?

That happened a couple of times, but that was because everyone was fighting in one big war.

Re: As I am currently in a war zone, I don't have many options for cabling

#174

Post by [deleted] »

manuel_w wrote: post #151
mrguyorama wrote: post #91

Earlier quoted context omitted.

"Winner writes the history" is largely bullshit. 90% of the narrative about the third reich and WW2 right up until recently came from the very Nazis responsible.

I don't understand how that counters "Winner writes the history". If the winner wouldn't write history it wouldn't be a problem to talk about - Holodomor in Russia - the genocide on the Armenians in Turkey.

[deleted]

Re: As I am currently in a war zone, I don't have many options for cabling

#175

Post by brianwawok »

kube-system wrote: post #137
joseda-hg wrote: post #128

Earlier quoted context omitted.

I was about to freak out, then I remembered that there's no ID in the US I can't change anything about my phone without providing both a "Public" (Taxpayer Code: Doesn't change, commonly shared, also used as a state bank account number) and "Private" (Document number: changes per renovation, only shared for identification purposes) number

Well, it's not so much that there's "no ID" as much as it is that we have hundreds of IDs. Some carriers in the US have you set a PIN number for phone porting. Although, people still forget them.

You provide a SSN and they will give you the porting pin (or let you pick it more likely)

Re: As I am currently in a war zone, I don't have many options for cabling

#176

Post by ethbr0 »

zamnos wrote: post #144
anoonmoose wrote: post #111

Earlier quoted context omitted.

This isn't even a hacker, though! This is a person who isn't capable of doing extremely basic electrical calculations. It'd be a totally different topic if it was a person who I thought fully appreciated the danger of what they're doing. If you can't calculate the voltage drop over a length of cable you should not be wiring your own deadly AC voltages. I'm willing to die on that hill.

This is a metaphorical hill you're willing to metaphorically and not literally die on? How brave. The Stack Overflow poster is on a metaphorical hill in a literal warzone to literally die on. They're trying to hack together AC power the best they can to make their home in Sudan livable. That's some serious hacking! So what if they don't know V=IR?

No need to be piquish. Parent's entitled to their opinion.

Re: As I am currently in a war zone, I don't have many options for cabling

#177

Post by jccooper »

gizmo686 wrote: post #71
tgsovlerkhgsel wrote: post #63

Earlier quoted context omitted.

It's unclear if he means Alternating Current or Air Conditioning with AC. I hope it's the former, because the latter needs kilowatts, not the 270 W they have. "Concrete" can also mean "the cement based building material" or "specific", as in "this specific building needs power to be habitable, because " (pumping drinking water for example, which is mentioned). The comment "because Russia and America are busy in Ukrai…

What else would they need power for? Heating and cooling are the only appliances I can think of that would be necessary for habitability.

Ventilation and/or lighting.

Re: As I am currently in a war zone, I don't have many options for cabling

#178

Post by ethbr0 »

rsync wrote: post #145
ethbr0 wrote: post #27

Earlier quoted context omitted.

Out of curiosity, does electron flow influence oxidation speed at all? Or is its speed purely a consequence of temperature + environmental gases?

"Out of curiosity, does electron flow influence oxidation speed at all?" Oxidation (and reduction) are literally electron flows . Oxidation is a loss of electrons and reduction is a gain of electrons. Since the oxidizing material is the anode in this (oxidation "circuit") you can connect a "sacrificial anode" to the material you want to preserve and the electrons will flow from that instead of the (material you want…

My understanding was that the speed of the reaction was dependent on temperature (and probably pressure/gas mix), and the electron flow was a byproduct rather than driver of the chemical reaction.

But it seems like you can indeed block the reaction from occuring by saturating the surface with enough electrons (i.e. by applying an appropriate amount of current) that it makes oxidation impossible from an electrochemical standpoint.

https://www.corrosionpedia.com/definition/1237/impressed-cur...

(In addition to the more common, passive bolt-on-a-sacrifical-cathode method)

Re: As I am currently in a war zone, I don't have many options for cabling

#179

Post by ltbarcly3 »

ethbr0 wrote: post #44
scotty79 wrote: post #34

Earlier quoted context omitted.

Maybe if it warms up the cable it could speed up oxidation?

It would. I think that's what most people were figuring. And also, assuming it's wrapped but not encased to cabling standards (e.g. there's oxygen between the insulator and wire, but the insulator itself is contiguous and airtight), oxidation would eventually deplete the available oxygen "inside" the cable, right?

The plastic on cheap farm cable like this is not going to be air tight, almost certainly isn't water vapor tight, and probably isn't even 'rust tight', in that I've seen rust migrate through plastic coated steel fencing and accumulate on the outside. I wouldn't count on it for anything other than making the rust slightly less obvious.

Re: As I am currently in a war zone, I don't have many options for cabling

#180

Post by labster »

andrepd wrote: post #130
netsharc wrote: post #92

Earlier quoted context omitted.

Depressing world facts in April 2023: "I'm in a war zone." "Oh yeah, which one?" At least in March 2023 it was "slightly better" that people would go straight to assuming the answer is "Ukraine". Any other active wars going on[1]? Maybe Myanmar.. [1] Result for "active wars in 2023" gives me a page of potential conflicts: https://www.cfr.org/report/conflicts-watch-2023

> Depressing world facts in April 2023: Has there ever been a point in at least the last 2500 years where there weren't multiple active warzones in the world?

> Depressing human nature facts in any year

FTFY

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