On 2015-05-22, Stormin Mormon wrote:
On 5/21/2015 7:07 PM, Ignoramus4563 wrote:
On 2015-05-20, Dan Espen wrote:
A force like magnetism decreases as the square of the distance.

a force like magnetism decreases as the CUBE of the distance.


Visible light decreases with the square
"inverse square law". Wonder why magnetism
would be different?

Because there are always two magnetic poles, and the magnetic field in
any point is the DIFFERENCE between the fields created by those poles.
The difference decreases with cube of the distance.

i