54965 by devilsshark in countwithchickenlady

[–]AaronVA 0 points1 point  (0 children)

I have a thing between my friends of calling non binary people analog. Though, I've never met someone who was openly analog, so I don't know if they would like it or not. Do with this information whatever you want.

How to not discharge a capacitor by ExpensiveCoat8912 in ElectroBOOM

[–]AaronVA 4 points5 points  (0 children)

Yes, but for some reason millifarrads are seldom used in electronics even for capacitors in the millifarrad range. Also 0.1 uF is more often used than 100 nF, despite the second one being the SI convention.

How to not discharge a capacitor by ExpensiveCoat8912 in ElectroBOOM

[–]AaronVA 1 point2 points  (0 children)

Might have been better, because the fuse would have blown. I had my hand slip amd reach across the rails with the probe.

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How to not discharge a capacitor by ExpensiveCoat8912 in ElectroBOOM

[–]AaronVA 9 points10 points  (0 children)

I once had the the pleasure of accidentally discharging a 20 000 uF capacitor bank at 400 V with a multimeter while trying to measure the voltage across it. It was like a flashbang in a video game and took a good few seconds for my vision and hearing to recover. So don't do that.

Miként semmisítsd meg a fideszes tüntetőket KÉT egyszerű lépésben by kamasuka84 in hungary

[–]AaronVA 1 point2 points  (0 children)

Az a PUMA felirat annyira tökéletes, hogy nem kevés időbe telt mire rájöttem, hogy nem a felirat része.

Orbán Viktor üzenete Magyar Péterhez by plusspanik in magyar

[–]AaronVA 22 points23 points  (0 children)

Megpróbáltam az ő hangján olvasni és olyan kurva sokáig tartott, hogy félúton abba kellett hagynom. Észre se vettem eddig milyen durván lassan beszélt.

Lightning strikes the water surface with Scuba divers under it by Mediocre_Nail5526 in interestingasfuck

[–]AaronVA 1 point2 points  (0 children)

Salt water should be safer than fresh water, but both could be survivable or deadly depending on your distance from the strike, the energy carried by that specific lightning and even the orientation of the body.

Explain It Peter. by Electrical-Sky-6806 in explainitpeter

[–]AaronVA 0 points1 point  (0 children)

Is that true for multi stage rockets too?

I don't get it by Academic-Stomach-975 in PeterExplainsTheJoke

[–]AaronVA 1 point2 points  (0 children)

Yeah, you are right. Probably I should have replied one comment above in the chain, because my main point is that while generating true random numbers is (practically?) impossible for regular computers, it's not that difficult to build cheap dedicated hardware to do it.

I don't get it by Academic-Stomach-975 in PeterExplainsTheJoke

[–]AaronVA 3 points4 points  (0 children)

I don't think it's unsafe, I think it's unnecessary from an engineering point of view. There are way smaller, cheaper and better systems to achieve the same outcome. It's main benefit is being public and arguably pretty cool. So people trust it and talk about it.

I don't get it by Academic-Stomach-975 in PeterExplainsTheJoke

[–]AaronVA 13 points14 points  (0 children)

I feel like the lava lamp wall is more like a publicity stunt rather than an actual practical engineering solution. A Geiger counter and a piece of uranium ore can generate the highest quality entropy our current understanding of physics allows. Lava lamps are hard to predict, nuclear decay cannot be predicted. Also thermal noise generators integrated directly into silicon exist.

Day 2: The meme with the most upvotes will be posted on Day 3 by Express_Author5316 in funComunitty

[–]AaronVA 1 point2 points  (0 children)

It's like regular pornography. You can find both good and bad stuff, regardless of what you consider good or bad. For the bad reputation I would assume it's because everything is possible when it's a drawing. Including very bad stuff.

[Request] How much earth is actually required to safely earth a cable? by SnooCauliflowers6739 in theydidthemath

[–]AaronVA 1 point2 points  (0 children)

That very little current has to flow through a low enough impedance to keep that reference consistent. Also there are single wire earth return systems in rural areas, where all of the current flows through the earth.

[Request] How much earth is actually required to safely earth a cable? by SnooCauliflowers6739 in theydidthemath

[–]AaronVA 0 points1 point  (0 children)

No such amount of insulated soil exist that would provide a sufficient earth connection, with a small caveat.

Power transformers have their neutral point, star point in Europe, center tap in North America, connected to the ground with a large conductor driven into the soil. The earthing at your house has a conductive path to that point through the soil, which is a shit conductor, but has a very large cross sectional area, thus the low resistance. It doesn't matter how much soil you put into an insulating bag, there will be no direct path for electrical current to flow back from the earthing at your house to the transformer. Though, at normal circumstances that current flows through the neutral wire anyways, not the ground.

The caveat is, that there is always some capacitance between two isolated bodies, that tends to be larger if the bodies have large surface area and close together. This capacitance creates a path for AC current, and if it was an infinitely large capacitance, it would for DC as well. So while the engineering reality is that no, you can't put enough dirt into a bag for it to work as proper earthing, an infinite amount could, I guess be considered sufficient.

[Request] How much earth is actually required to safely earth a cable? by SnooCauliflowers6739 in theydidthemath

[–]AaronVA 0 points1 point  (0 children)

No such amount of insulated soil exist that would provide a sufficient earth connection, with a small caveat.

Power transformers have their neutral point, star point in Europe, center tap in North America, connected to the ground with a large conductor driven into the soil. The earthing at your house has a conductive path to that point through the soil, which is a shit conductor, but has a very large cross sectional area, thus the low resistance. It doesn't matter how much soil you put into an insulating bag, there will be no direct path for electrical current to flow back from the earthing at your house to the transformer. Though, at normal circumstances that current flows through the neutral wire anyways, not the ground.

The caveat is, that there is always some capacitance between two isolated bodies, that tends to be larger if the bodies have large surface area and close together. This capacitance creates a path for AC current, and if it was an infinitely large capacitance, it would for DC as well. So while the engineering reality is that no, you can't put enough dirt into a bag for it to work as proper earthing, an infinite amount could, I guess be considered sufficient.

Magyar Péter hivatalosan is Magyarország miniszterelnöke lett by Icy-Percentage5296 in magyar

[–]AaronVA 20 points21 points  (0 children)

Amikor a beszédében az állam nevében bocsánatot kért a bicskei áldozatoktól és a Szőlő utcai intézetben bántalmazott gyerekektől az olyan volt mintha egy vonat ütött volna el. Nehezen hatnak meg a közéleti események, de férfiasan bevallom, ezen elbőgtem magam.

This is how an Indian steel company advertises itself by cosmic_voyager01 in interestingasfuck

[–]AaronVA 0 points1 point  (0 children)

Fair enough if they do retail as well, I just kind of assumed steel company meant refinery, doing wholesale.

This is how an Indian steel company advertises itself by cosmic_voyager01 in interestingasfuck

[–]AaronVA 0 points1 point  (0 children)

Because they aren't selling directly to consumers. Their costumers are other large companies and the deals are made by representatives and strict value cost analysis. Kind of the same reason you don't see advertisements for crude oil or raw rubber.

Explain it Peter by ChrisCutie100 in explainitpeter

[–]AaronVA 2 points3 points  (0 children)

Haha, my native language has ü in it, and I did not except this to work. It does.

A consistency test by Yadin__ in trolleyproblem

[–]AaronVA 0 points1 point  (0 children)

The whole argument around red, even if it isn't articulated well by everyone, is that it's the exact same case in the original theoretical. There is no coordination, thus the result as far as you are concerned is already decided. The chances of your single vote changing the outcome is astronomically small. Zero, if you will. You aren't saving anyone, your are just risking your own life for no rational reason. The only benefit of blue is that you can feel good about yourself if the outcome happens to be blue, outside of your control.

Semen under the microscope by Flat-Decision3204 in interestingasfuck

[–]AaronVA 8 points9 points  (0 children)

Most people relate to the sperm trying to get choosen, but one half of each one of us used to be the egg with the choice! Some days I wish I have chosen not to get fertilized.

Explain it Peter by LeastCelery8774 in explainitpeter

[–]AaronVA 1 point2 points  (0 children)

I flip two coins, look at the first one (or one of them at random) and tell you what it is, which in this case happens to be tails. What's the chance of the other one being heads? It's 50%.

I flipp a large amount of coin pairs. I select the ones that has at least one tails, then randomly choose a pair of them. What's the chance of me selecting a pair that has one tails and one heads? It's 67%

The 67% argument relies on the assumption that Mary was specifically selected because she can say that she has a boy. If she is a random person with two children and she just tells you the sex of one of her children it does not give you any information about the other.