this post was submitted on 02 Sep 2024
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A graphic illustration of a right hand gently grasping a large arrow pointed diagonally upward. The thumb is up pointing in the same direction as the arrow. A smaller arrow underneath the hand indicates the direction to wrap the fingers around the large arrow. The title of the image is File:Right hand rule simple.png

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[–] mossy_@lemmy.world 53 points 2 years ago (4 children)

me when I'm trying to remember the rotation of magnetic waves created by a current in a wire

[–] midribbon_action@lemmy.blahaj.zone 11 points 2 years ago (1 children)

Last time I checked a moving charge created a magnetic field, not a wave. And you determine the curl, not the rotation. You didn't remember

[–] mossy_@lemmy.world 14 points 2 years ago (1 children)

me when I'm trying not to let some nerd get under my skin because I struggled greatly with electromagnetics

[–] TractorDuffy@lemmy.world 1 points 2 months ago* (last edited 2 months ago) (1 children)

I know right? you were literally responding to her meme in a complimentary way and she attacked you, lol. not sure what's going on with her lately. I think she's going through something. My trans sister has been in an AWFUL mood lately

[–] mossy_@lemmy.world 1 points 2 months ago

eh, I'm over it. it's been a year, I can put that behind me

[–] Valmond@lemmy.world 7 points 2 years ago

Those curved sin waves...

[–] breakcore@discuss.tchncs.de 4 points 2 years ago

If you know what I mean 😉

[–] glizzyguzzler@lemmy.blahaj.zone 3 points 2 years ago (1 children)
[–] mossy_@lemmy.world 5 points 2 years ago (1 children)

I don't get it, GlizzyGuzzler, is something strange about this image? Should I get off on this post?

[–] glizzyguzzler@lemmy.blahaj.zone 5 points 2 years ago (1 children)

You don’t remember the ol’ twist n’ yank method from your EE days??

[–] mossy_@lemmy.world 6 points 2 years ago (1 children)

the only twisting and yanking I did was pulling the wires out of my breadboard when I was done with it!

[–] glizzyguzzler@lemmy.blahaj.zone 6 points 2 years ago (1 children)

You’re missing out, it gets hot and heavy under the optics bench after lab hours

[–] mossy_@lemmy.world 5 points 2 years ago

I suppose they would turn the air conditioning off when everyone leaves...

[–] aldalire@lemmy.dbzer0.com 32 points 2 years ago (1 children)

I once used my left hand for the right hand rule because i was writing with my right hand during a physics test

Needless to say, i got the wrong sign

[–] Successful_Try543@feddit.org 7 points 2 years ago

You may use the left hand, if you use the technical direction of current from '+' to '-'.

[–] affiliate@lemmy.world 19 points 2 years ago

why even use the right hand rule when you can just take a random guess and be right half of the time

[–] kubica@fedia.io 19 points 2 years ago (1 children)

It is funny that this gestures are taught as some kind of mnemonics, but then some for some other application another mnemonic with the opposite hand and same gesture is introduced and I don't ever remember which hand was associated with what anymore. So I remember something about hands that doesn't get me anywhere.

[–] superb@lemmy.blahaj.zone 3 points 2 years ago (1 children)

I believe 3D graphics uses both to describe different coordinate systems (some are left handed and some are right)

[–] s_s@lemm.ee 6 points 2 years ago

Don't even get started with y-up vs z-up

[–] CameronDev@programming.dev 8 points 2 years ago

The ol' twist and yank method

[–] HEXN3T@lemmy.blahaj.zone 8 points 2 years ago

I have to admit that title is really clever

[–] SzethFriendOfNimi@lemmy.world 6 points 2 years ago (1 children)

Who would ever use this?

Atomic spin and chemical bonds have entered the chat

[–] Successful_Try543@feddit.org 5 points 2 years ago

Or angular momentum.

[–] SpaceNoodle@lemmy.world 5 points 2 years ago

Sudden HHGttG vibes

[–] beetsnuami@slrpnk.net 4 points 2 years ago

Haha, a reference to Hitchhiker’s Guide to the Galaxy!

[–] jabathekek@sopuli.xyz 4 points 2 years ago

...torsion.

[–] 5oap10116@lemmy.world 2 points 2 years ago* (last edited 2 years ago)

No thanks. I prefer the 3 variable left hand rule.

[–] moosetwin@lemmy.dbzer0.com 1 points 2 years ago