[TowerTalk] Fwd: OCFD

[Richard (Rick) Karlquist]

On 3/26/2017 10:17 AM, Hans Hammarquist via TowerTalk wrote:
> Hi Jim,
>
> Everything has a capacitance to somewhere. Even Mother Earth has a
> capacitance. You can select what reference point you like, Moon, Sun, Pluto. I
> never really grasped it myself when I took my classes in physics.
>

It is simple problem in electromagnetics to calculate the isotropic 
capacitance of the earth to free space, because of the spherical 
symmetry.  The answer is about 700 uF.

Rick N6RK