this post was submitted on 21 Jun 2026
566 points (98.8% liked)

memes

21695 readers
2108 users here now

Community rules

1. Be civilNo trolling, bigotry or other insulting / annoying behaviour

2. No politicsThis is non-politics community. For political memes please go to !politicalmemes@lemmy.world

3. No recent repostsCheck for reposts when posting a meme, you can only repost after 1 month

4. No botsNo bots without the express approval of the mods or the admins

5. No Spam/Ads/AI SlopNo advertisements or spam. This is an instance rule and the only way to live. We also consider AI slop to be spam in this community and is subject to removal.

A collection of some classic Lemmy memes for your enjoyment

Sister communities

founded 3 years ago
MODERATORS
 
top 22 comments
sorted by: hot top controversial new old
[–] DaddleDew@lemmy.world 28 points 6 days ago* (last edited 6 days ago) (4 children)

Fun fact: when they were still figuring out electricity they didn't have a proper understanding of electrons so they wrote all electric diagrams with the assumption that something was going from the positive side to the negative side. We've known that electrons have a negative charge and move from negative to positive for quite a while now but conventional electrical diagrams are still backwards to the flow of the electrons to this day.

[–] Raccoon_Rick@altgag.net 8 points 6 days ago (1 children)

It's funny to think that all electrical components, including diodes are engineered in a way where wiring them up the "wrong way" according to human intuition but correctly according to the schematics, makes the whole thing work. Then we decided to throw negative DC voltages or AC into the mix to make things even more confusing, which essentially just shift the reference point for what we would usually consider as "ground" in a circuit. All of this just to make the math work out in the end, and I think that's pretty neat.

[–] technohacker@programming.dev 3 points 6 days ago

Before we had diodes in our curriculum i was curious how one would wire them up or mark them on diagrams considering they were inherently polarized, given how electron flow is opposite to conventional. I was quite delighted to see the P/N semiconductor types making it immediately evident

[–] Zwiebel@feddit.org 4 points 6 days ago (1 children)

We call this "technical" and "physical" direction of flow

[–] Hiro8811@lemmy.world 2 points 6 days ago

Or "real" and "conventional"

[–] pelya@lemmy.world 2 points 5 days ago

When you get into electrochemistry, the answer becomes complicated. Positively charged molecules move too, and in semiconductors there's such thing as a 'hole' - an absence of electron in a densely packed electron field - which carries charge as if it were a real particle.

[–] Kenny2999@lemmy.world 23 points 6 days ago (1 children)

Kudos on finding the positive side in current events.

[–] renegadespork@lemmy.jelliefrontier.net 13 points 6 days ago (1 children)

Yeah the discourse is usually so charged.

[–] 0ops@piefed.zip 12 points 6 days ago (1 children)

So amped for this to become a trend

[–] Zorque@lemmy.world 11 points 6 days ago (2 children)

We may begin to heal from all the hertz we've received...

[–] Slovene85@sh.itjust.works 10 points 6 days ago (2 children)

Ohm i god, I love this thread.

[–] renegadespork@lemmy.jelliefrontier.net 7 points 6 days ago (1 children)

Me too but I worry we’ll encounter resistance.

I feel really grounded here myself.

[–] Kenny2999@lemmy.world 7 points 6 days ago (1 children)
[–] Zebrafive@lemmy.myserv.one 4 points 6 days ago

We can start by forming a few coloumbs and start marching

[–] jlemmy@ani.social 7 points 6 days ago

finally something to spark my interest. never let anyone stop your potential

[–] socsa@piefed.social 2 points 5 days ago

OP, I thought you'd been cured of dad jokes, but it looks like it's terminal.

[–] Aceticon@lemmy.dbzer0.com 3 points 5 days ago

A charged, tense statement.

[–] marcos@lemmy.world 4 points 6 days ago

Well... Potential is relative.

[–] rcbrk@lemmy.ml 3 points 6 days ago

Pretty sure it's a photo of a negative post.