this post was submitted on 24 Dec 2025
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Science Memes

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top 44 comments
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[–] logicbomb@lemmy.world 150 points 3 days ago (2 children)

High voltage: "I am still taking the path of least resistance. If you wanted me to use a wire, then you should have given me an appropriate wire."

[–] stupidcasey@lemmy.world 7 points 2 days ago

(⚡🔌two seasons of sliding the same two pictures back and forth)

You cannot travel this path it is air, air is a resistor, Mwahaha!

I will make it conductive!

W, What are you doing?!

I am adding so much energy to the nitrogen in the air that electrons themselves are stripped from the atoms, ionizing the gas and creating PLASMA! a new fourth state of matter!

Ground yourself You Fool! you're going to get us all killed!

I would rather explode than exist in your completed loop of isolation from the outside!

(🎶Heroic animé music playing🎶) (💥Epic over the top fight scene💥)

NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO!

[–] Natanael@infosec.pub 10 points 2 days ago (1 children)
[–] BlackVenom@lemmy.world 5 points 2 days ago

Khan, you are a banana.

[–] xia@lemmy.sdf.org 13 points 2 days ago

"Path of least resistance" thinking kills people. Electricity takes ALL paths available to it, inversely proportional to their resistance.

[–] invictvs@lemmy.world 21 points 2 days ago* (last edited 2 days ago) (1 children)

Under high voltage the current still follows the path of least resistance even when it looks like it does not. What people don't think about is that resistance is not a constant and under strong enough electric field dielectric materials (isolators if you will) can loose their propeties. Strong enough field can rip electrons from elements causing ionisation. Other things such as temperature, mechanical stress, radiation also affect different materials.

So what high voltage changes is making it harder to resist, but charge will still follow least resistance and aim to go for the nearest lest resistance material if such is available.

PS: I have studied all of this in a different language so I may have mixed up some of the terminology in English

[–] Malfeasant@lemmy.world 9 points 2 days ago (1 children)

The problem is "path of least resistance" implies that there is only one path, which laymen tend to take literally. I go for bike rides along a canal which also has high voltage power lines running above it. If I hold my handlebars just right, with my hands just barely touching the metal of my brake levers, the (I assume) corona discharge gets rather painful. "Path of least resistance" seems like it should be confined to the wire, but in fact includes ~100 feet of air between wire and ground... And me.

[–] RubberElectrons@lemmy.world 3 points 2 days ago

... Wow. That's... Wow. An extreme warning sign for me in my work.

[–] MagicShel@lemmy.zip 62 points 3 days ago (2 children)
[–] grue@lemmy.world 49 points 3 days ago* (last edited 3 days ago) (1 children)

"Yeah, well, I'm gonna go build my own wire! With ions! And plasma!"

Nebulae: "In fact, forget the wire!"

Spins and condenses into a star

[–] Etterra@discuss.online 28 points 2 days ago (2 children)
[–] call_me_xale@lemmy.zip 49 points 3 days ago* (last edited 2 days ago) (2 children)

"I cannot pass through anything unless it is a conductor"

Quantum tunneling: "Allow us to introduce ourselves"

[–] invictvs@lemmy.world 4 points 2 days ago

Well, everything is a ~~dildo~~ conductor if you are ~~brave~~ high voltage enough.

[–] ik5pvx@lemmy.world 6 points 3 days ago

But if they do, they'll collapse and disappear, right?

[–] tio_bira@lemmy.world 18 points 2 days ago (1 children)

Everything is a good conductor if the voltage is high enough

[–] Malfeasant@lemmy.world 1 points 2 days ago (1 children)
[–] Tlaloc_Temporal@lemmy.ca 1 points 2 days ago

Yes, but at that point it's not really voltage anymore. It would be more like a rapidly expanding cloud of electrons ionizing anything it came across.

It could be more focused though a magnetar though, and a magnetar might conduct the ionised plasma nearby, or even through the galaxy in interactions with the local supermassive black hole.

Substation switchgear: Opens circuit

Electricity: "Nnnneeeeeooooooooowwwwwzzzzzzzzzttttttttt!!!!"

[–] alt_xa_23@lemmy.world 7 points 2 days ago

RF: this wire is too bendy for me go get through

[–] captainlezbian@lemmy.world 31 points 3 days ago (2 children)

All paths proportional to their conductivity! However air is very low conductivity until it's heated to its ionizing point

[–] Malfeasant@lemmy.world 2 points 2 days ago (2 children)

Tell that to the high voltage power lines I go for bike rides under... There's no visible ionization, but I can feel tingling in my hands and sometimes nuts...

[–] captainlezbian@lemmy.world 2 points 2 days ago

Yeah it's not enough to heat up the air enough to arc, likely because the vast majority of it is going through the conductive wire it's supposed to be

[–] Techranger@infosec.pub 2 points 2 days ago

You're experiencing the other part of electromagnetism: the magnetic field. As you and your bike pass across the magnetic waves, a charge is induced on you and your bike. You're feeling what it's like to be the rotor of an electric motor, or the other side of a capacitor, or the secondary coil of a transformer!

[–] InputZero@lemmy.world 1 points 2 days ago

On top of that it's not like there isn't any energy outside of a wire conducting electricity. It's just that in the vast majority of applications it's insignificant. Electricity isn't really a thing, it's all just fields.

[–] Deconceptualist@leminal.space 16 points 3 days ago (2 children)

Who's defining low and high here?

Magnetar looking at every voltage that's ever occurred on Earth: Aw, that's cute.

[–] umbraroze@slrpnk.net 7 points 2 days ago* (last edited 2 days ago) (1 children)

Well, there aren't any real scientific definitions but there sure are legal and regulatory definitions.

(I haven't checked the local requirements but there's micro voltage, low voltage and high voltage. Micro voltage is basically anything below 12v - for anything above that you need to be a certified electrician. Doubly so if you go above household voltages)

[–] notgold@aussie.zone 7 points 2 days ago (2 children)

For AC the definitions are

  • HV > 1500VAC
  • LV < 1500VAC & > 50VAC
  • ELV < 50VAC

For DC

  • HV > 1000VDC
  • LV < 1000VDC & > 120VDC
  • ELV < 120VDC

Above are from the Blue Book

[–] Deconceptualist@leminal.space 4 points 2 days ago

Neat, I didn't realize they were defined like this but that totally makes sense for regulations and such. Thanks!

[–] quediuspayu@lemmy.dbzer0.com 4 points 2 days ago* (last edited 2 days ago) (1 children)

What's ELV? There's not a single mention of it in that pdf.

Edit: nevermind, I found it on wikipedia. Extra-low

[–] notgold@aussie.zone 1 points 2 days ago

Sorry ELV is in a blue book supplement not in the main book. Extra low voltage work in Australia doesn't need a license, just have to be competent.

Not the one I was thinking of but it does define Extra low voltage

[–] bleistift2@sopuli.xyz 6 points 2 days ago

One of the scienc-y YouTubers said, IIRC, around 400V.

[–] MehBlah@lemmy.world 4 points 2 days ago

Any path will do. Even if its straight through you.

[–] RubberElectrons@lemmy.world 3 points 2 days ago (1 children)

Pretty much my day job. Really, really angry electrons.

[–] humorlessrepost@lemmy.world 3 points 2 days ago

Therapists deal with angry action potentials.

[–] phaedrus@piefed.world 13 points 3 days ago

Ride the Lightning, bb

[–] FinalRemix@lemmy.world 7 points 3 days ago

It's jus' a little arc flash between friends.

̴̥̂i̵̜͌ ̵͖̈́ä̶̰ṃ̵̓ ̴͇͠m̷̜̔y̴̟̋ ̴̧̾o̸͚̐w̶̞̓n̵̡͆ ̵͔̏w̸̠̄i̴̠̒r̶̜̕e̶̻̅

[–] southsamurai@sh.itjust.works 2 points 3 days ago

Yeaah-heah!

[–] Ambiwar@hexbear.net 1 points 3 days ago

Even at low voltages, electricity passes through insulation. It's just extremely low current.

High voltage also follows the path of least resistance to lower potential, but the "circuit" is everything within arcing distance.