/sci/ - Science & Math

[Anonymous No.8128833]

Does electric field from some wire spreads across whole universe?
Even if its small small intensity , it still exists?

Same applies for gravity? Our planet is affecting even the most distant objects. Even tho the effect is impractical and small to acknowledge, it still in fact exists?

Is this really true, is everything "connected"?

[Anonymous No.8128853]

[math]F = G \frac{m_1m_2}{r^2} \neq 0[/math] for any value of [math]r[/math] unless [math]r \rightarrow \infty[\math]. The same for the electric field (btw, wires create magnetostatic fields, not electrostatic fields).

[Anonymous No.8128855]

>>8128853
[math]r \rightarrow \infty[/math]
This from the classic perspective of course.

[Anonymous No.8128858]

>>8128853
>>8128855
Thanks for reply. I actually knew all of this but I needed just a word from someone else to kind a confirm it or at least point something new for me.

I dont have real friends that are into these topics so Internet is my friend for most things.

Also
>This from the classic perspective of course.
What did you mean by this? What are some other perspectives aside from classic?

[Anonymous No.8128859]

>>8128833
If these fields are truly quantized, then no.

If they are absolutely continuous, then yes.

[Anonymous No.8128874]

>>8128833
[Math] idk math r letters numbers [Math]

[Anonymous No.8128879]

>>8128874
thanks for your contribution

[Anonymous No.8128974]

>>8128853
So basically, [math]\lim_{r \to \infty} G \frac{m_{1}m_{2}}{r^2} =0[/math]

And the distance r between any two known objects with known positions can be measured, so [math] F\neq 0 [/math] for anything?

[Anonymous No.8128983]

>>8128858
It's the only type of mechanics I know at the moment, I'm just finishing the first year of Physics.

>>8128974
Yup.

[Anonymous No.8129226]

>>8128853
>btw, wires create magnetostatic fields, not electrostatic fields).

not quite
>pic related