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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[–] [email protected] 52 points 2 weeks ago (4 children)

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

[–] [email protected] 10 points 1 week 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

[–] [email protected] 14 points 1 week ago

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

[–] [email protected] 7 points 2 weeks ago

Those curved sin waves...

[–] [email protected] 4 points 2 weeks ago

If you know what I mean 😉

[–] [email protected] 3 points 2 weeks ago (1 children)
[–] [email protected] 5 points 2 weeks ago (1 children)

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

[–] [email protected] 5 points 1 week ago (1 children)

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

[–] [email protected] 6 points 1 week ago (1 children)

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

[–] [email protected] 6 points 1 week ago (1 children)

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

[–] [email protected] 5 points 1 week ago

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

[–] [email protected] 31 points 2 weeks 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

[–] [email protected] 7 points 2 weeks ago

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

[–] [email protected] 19 points 2 weeks ago

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

[–] [email protected] 19 points 2 weeks 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.

[–] [email protected] 3 points 2 weeks ago (1 children)

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

[–] [email protected] 6 points 1 week ago

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

[–] CameronDev 8 points 2 weeks ago

The ol' twist and yank method

[–] [email protected] 8 points 2 weeks ago

I have to admit that title is really clever

[–] [email protected] 6 points 2 weeks ago (1 children)

Who would ever use this?

Atomic spin and chemical bonds have entered the chat

[–] [email protected] 5 points 2 weeks ago

Or angular momentum.

[–] [email protected] 5 points 2 weeks ago

Sudden HHGttG vibes

[–] [email protected] 4 points 2 weeks ago

...torsion.

[–] [email protected] 4 points 2 weeks ago

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

[–] [email protected] 2 points 1 week ago* (last edited 1 week ago)

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

[–] [email protected] 1 points 1 week ago