Alan Erskine wrote:
Current flow has nothing to do with gravity.

How do you know this ? most wires on earth are perpendicular to earth's gravity.

But if you had a long electrical wire running from moon to earth, perhaps the
electrons would be accelerated by earth's gravity and impact earth at
tremendous speeds :-)

Seiously though, in a theoretical scenario with power production on the moon
with a long wire back to earth, would the wire absolutely have to be 2
conductors, or could they devise a way to send the charged electrons on a one
way trip to earth ?