this post was submitted on 02 Sep 2024
195 points (98.5% liked)

196

18464 readers
300 users here now

Be sure to follow the rule before you head out.


Rule: You must post before you leave.



Other rules

Behavior rules:

Posting rules:

NSFW: NSFW content is permitted but it must be tagged and have content warnings. Anything that doesn't adhere to this will be removed. Content warnings should be added like: [penis], [explicit description of sex]. Non-sexualized breasts of any gender are not considered inappropriate and therefore do not need to be blurred/tagged.

If you have any questions, feel free to contact us on our matrix channel or email.

Other 196's:

founded 2 years ago
MODERATORS
 

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

top 26 comments
sorted by: hot top controversial new old
[–] mossy_@lemmy.world 53 points 1 year 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 1 year 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 1 year ago

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

[–] Valmond@lemmy.world 7 points 1 year ago

Those curved sin waves...

[–] breakcore@discuss.tchncs.de 4 points 1 year ago

If you know what I mean 😉

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

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

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

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

[–] mossy_@lemmy.world 5 points 1 year ago

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

[–] aldalire@lemmy.dbzer0.com 32 points 1 year 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 1 year ago

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

[–] affiliate@lemmy.world 19 points 1 year 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 1 year 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 1 year 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 1 year ago

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

[–] HEXN3T@lemmy.blahaj.zone 9 points 1 year ago

I have to admit that title is really clever

[–] CameronDev@programming.dev 8 points 1 year ago

The ol' twist and yank method

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

Who would ever use this?

Atomic spin and chemical bonds have entered the chat

[–] Successful_Try543@feddit.org 5 points 1 year ago

Or angular momentum.

[–] SpaceNoodle@lemmy.world 5 points 1 year ago

Sudden HHGttG vibes

[–] jabathekek@sopuli.xyz 4 points 1 year ago

...torsion.

[–] beetsnuami@slrpnk.net 4 points 1 year ago

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

[–] 5oap10116@lemmy.world 2 points 1 year ago* (last edited 1 year ago)

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

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