/sci/ - Science & Math » Thread #11562840

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Anonymous Tue 14 Apr 03:50:45 2020 No.11562840 View Reply Original Report

Quoted By: >>11563397 >>11563402 >>11563489 >>11564830

What does everyone think about the numbering on this.

Anonymous

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Anonymous Tue 14 Apr 2020 04:02:06 No.11562869 Report

Quoted By: >>11563067 >>11563410

I think it's based on the western tradition of reading right to left and assuming up is a directional increase.

From there you assume the positive quadrant is first and the negative, last.

It's a strange mixture of arbitrary and logical. Here's a better question;

Why does an INCREASE of electrons denote NEGATIVITY

?????

Anonymous

Anonymous Tue 14 Apr 2020 05:45:51 No.11563067 Report

Quoted By: >>11563485

>>11562869
Because adding a negative makes more negative

Anonymous

Anonymous Tue 14 Apr 2020 05:48:12 No.11563076 Report

Quoted By: >>11563320

e^(it) or the most common parametrization of the circle
t->(cost, sint)
goes through the quadrants in order
I, II, III, IV

Anonymous

Anonymous Tue 14 Apr 2020 08:52:41 No.11563320 Report

Quoted By:

>>11563076
This

It's just a consequence of the usual convention of choosing a right handed coordinate system, and then picking "y = 0, x > 0" as your starting point

Anonymous

Anonymous Tue 14 Apr 2020 09:59:39 No.11563397 Report

Quoted By: >>11563402

>>11562840
Because you don't rotate the terminal arm clockwise.

Anonymous

Anonymous Tue 14 Apr 2020 10:00:43 No.11563402 Report

Quoted By:

>>11562840
>>11563397
For got to add "it's fine for me because..."

Anonymous

Anonymous Tue 14 Apr 2020 10:07:47 No.11563410 Report

Quoted By: >>11563485 >>11564830

>>11562869
If you took physics you'd know negativity is really short for electronegativity. So when you see electron think of that

Anonymous

Anonymous Tue 14 Apr 2020 10:55:46 No.11563485 Report

Quoted By: >>11564830

>>11563410
I'm aware

But why isnt it electroPOSITIVITY? Since it is essentially the presence of more of something.

>>11563067
Adding anything makes more of that thing. Why should it be denoted negative instead of positive?

Anonymous

Anonymous Tue 14 Apr 2020 11:01:25 No.11563489 Report

Quoted By:

>>11562840
based

Anonymous

Anonymous Tue 14 Apr 2020 11:59:28 No.11563594 Report

Quoted By:

Good thread I laff

Anonymous

Anonymous Tue 14 Apr 2020 20:18:25 No.11564830 Report

Quoted By:

>>11563410
>>11563485
Jesus fucking Christ

>>11562840
A positive (active) rotation is counter clockwise. Probably historically this is because early engineering had to do with catapults and whatnot so a positive angle corresponds to the elevation angle of the projectile

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