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[-] bleistift2@sopuli.xyz 360 points 1 month ago* (last edited 1 month ago)
[-] howrar@lemmy.ca 110 points 1 month ago

Turns out Benjamin Franklin had it right, and it was this time traveler that caused him to flip it to the wrong direction.

[-] NeatNit@discuss.tchncs.de 40 points 1 month ago

While funny, this doesn't work because the time traveler told him specifically which one is negative.

[-] Jerkface@lemmy.world 14 points 1 month ago

"... Well now I'm not going to do it."

[-] OpenStars@piefed.social 24 points 1 month ago

Damn time travelers, ~~always~~ ~~never~~ messing things up!

[-] SLVRDRGN@lemmy.world 28 points 1 month ago

Man, this one is a good one.

[-] explodicle@sh.itjust.works 21 points 1 month ago

IMHO Franklin is one of the few who would go straight to "what is it?" without blinking.

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[-] orbitz@lemmy.ca 14 points 1 month ago

Always love their comics but since I don't know crap about this stuff it's amusing to see how this one is relevant to a meme. Wish I knew more but only so much I've learned so far. One day perhaps but not today.

[-] helpImTrappedOnline@lemmy.world 41 points 1 month ago* (last edited 1 month ago)

https://www.explainxkcd.com/wiki/index.php/Main_Page

The contributors on this site do an excellent job explaining the comics. Not really ELI5, but more ELI15.

It's okay to not understand every comic, someone else out there figured it out and explained it to us.

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[-] Console_Modder@sh.itjust.works 127 points 1 month ago

You just have to ignore the existence of electron flow. Conventional current flow is all that matters, and the only people who use electron flow are those who design integrated circuits and lunatics

[-] ch00f@lemmy.world 90 points 1 month ago

You forgot science enthusiasts who are desperately trying to impress people.

[-] Console_Modder@sh.itjust.works 114 points 1 month ago

They get lumped in with the lunatics

[-] RizzRustbolt@lemmy.world 37 points 1 month ago

We don't want 'em.

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[-] JasonDJ@lemmy.zip 22 points 1 month ago

You mean to tell me that there are people out there whose job it is to design lunatics?

That's fucking awesome. Like a real-life comic book author.

[-] ThePyroPython@lemmy.world 14 points 1 month ago

It's also useful to think of the "ground" plane as a sort of well of potential charger carriers that the conventional current model overlooks. Aside from simultaneously visualising what's happening inside simple ICs like BJTs / MOSFETs and the circuit diagrams I've found it a useful way for checking for common mode noise in circuit and PCB design.

I guess this makes me a lunatic? Don't know until we test it;

Someone give me an ~~asylum~~ makerspace to takeover!

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[-] BartyDeCanter@lemmy.sdf.org 8 points 1 month ago* (last edited 1 month ago)

Are you implying that there are IC designers who aren’t lunatics?

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[-] TheRealKuni@piefed.social 77 points 1 month ago

And that’s why we have positrons instead of the much-cooler-sounding negatrons.

[-] MajorMajormajormajor@lemmy.ca 60 points 1 month ago

Man, they have positrons and negatrons now? The Transformers franchise is wild.

[-] Assassassin@lemmy.dbzer0.com 25 points 1 month ago

We gotta keep them out of sports, they are too strong.

[-] MajorMajormajormajor@lemmy.ca 9 points 1 month ago

The south^of Cybertron^ will rise again?

[-] TheFogan@programming.dev 13 points 1 month ago

Oddly when it came time to negotiations, they somehow realized actually calling yourself a Decepticon, was not a good name for inspiring trust.

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[-] morto@piefed.social 67 points 1 month ago

"all models are wrong, but some are useful"

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[-] ThomasWilliams@lemmy.world 64 points 1 month ago

The current does flow from positive to negative. Electricity is not the flow of electrons - they just generate the field that the electric wave flows through. The electrons don't actually move very far. The wave flows outside of the wire, not in it.

[-] xthexder@l.sw0.com 51 points 1 month ago

Most circuit diagrams do not draw current flowing in any direction at all. It's just labeled + and -. I don't see anything wrong with this.

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[-] _druid@sh.itjust.works 30 points 1 month ago

But then I get to talk about all those holes flowing.

[-] Lost_My_Mind@lemmy.world 19 points 1 month ago

Uhhhh......pornhub is that way ----->

[-] _druid@sh.itjust.works 21 points 1 month ago

Wait, no, but first, imagine marbles in a straw!

[-] takeda@lemmy.dbzer0.com 18 points 1 month ago

Pornhub is that way ----->

[-] SkunkWorkz@lemmy.world 13 points 1 month ago

Imagine a chain getting tugged back and forth

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[-] j4yc33@piefed.social 21 points 1 month ago

OMG-O-S-H every circuit designed with conventional current just exploded because of your revelation here.

/s

My friend, this is the same branch of science that got us to space with calculations assuming spherical cows.

[-] bandwidthcrisis@lemmy.world 20 points 1 month ago

While we're at it, is a compass needle's North pole actually a South so that it points North? Or is the Earth's North pole actually South so that the needle's North pole points to it?

(I know that I could look this up, I just want to confuse people.)

[-] mexicancartel@lemmy.dbzer0.com 16 points 1 month ago

But that's by design, while this is a convention problem

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[-] Fedizen@lemmy.world 19 points 1 month ago

Couldn't you fix this by also defining electrons as positive? Imo the physicists and electrical engineers should fight it out.

[-] veroxii@aussie.zone 9 points 1 month ago

All words are just made up.

[-] Console_Modder@sh.itjust.works 8 points 1 month ago

The physicists are absolutely right. However, I reject their reality and substitute my own

[-] Fedizen@lemmy.world 9 points 1 month ago

That sounds like the electrical engineers I know

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[-] rumba@lemmy.zip 19 points 1 month ago

So, it doesn't actually change anything; everything still works the same.

But textbooks need to be thrown away and remade, every circuit diagram, every electrical engineering plan, decades of research and research papers have to be combed and corrected, or accept that they're wrong.

While technically possible, it would create colossal risk and unending chaos and It's environmentally unsound, for something that doesn't change anything in the end.

Lazy is not checking your mail.

Refusing to turn reality on its head for a null change in the end is something else entirely.

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[-] gandalf_der_12te@discuss.tchncs.de 16 points 1 month ago

Eh, i've struggled with this for years but eventually found my peace.

You see, there's two types of electric current: Electrons moving through a wire, and protons moving through water (the second one is also called a pH gradient, it happens e.g. in cell membranes of chloroplasts, fascinating stuff, check it out).

Basically plants do photosynthesis, which is extremely similar to what solar panels do. They generate an electric current, and in that current, positive charges move, so the "direction of current flow" is the correct one.

I have come to accept that the current inside living beings is more important than the current in all the machinery, because without life there would be no machinery, so life deserves to get the "correct" current.

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[-] nomen_dubium@startrek.website 13 points 1 month ago

feels like this should be a skeletor quote!

[-] takeda@lemmy.dbzer0.com 12 points 1 month ago

True, but most of laws, equations etc still work and only specific fields need to adjust for this.

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[-] IntriguedIceberg@lemmy.world 11 points 1 month ago

Could someone explain what makes one pole negative/positive? Like, could we have named them Alice/Bob or is there a specific reason we went with +/-?

[-] Dalvoron@lemmy.zip 10 points 1 month ago

Guessing here, but +/- is good for describing them as binary opposites as that system already exists. This is a good thing assuming there are two types of charge/pole which behave in opposite ways (Eg move differently in a field). It's also just good to use numbers so that we can describe the amount of + and the amount of -, which numbers already do. It also allows us to describe neutral as neither + nor -, but 0. Again, we already have a scaffold there for numbers and it's easy to copy it for new things when that makes sense.

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[-] Riverside@reddthat.com 8 points 1 month ago

Currents aren't drawn incorrectly. Electrons do move backwards, but since their electric charge is negative, the current goes the correct way.

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this post was submitted on 02 Feb 2026
856 points (97.5% liked)

Science Memes

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