Theoretically, if we send enough electrons to the moon, we can pull the moon to Earth. This is, maybe a realistic solution for our over populated, energy hunger near future.

If we start to beam electrons to the moon, it's only a matter of time before the moon starts to accelerate to Earth. The attraction force between the positive Earth and the negative moon causes the acceleration.

There is a danger, once this acceleration begins, it might not stop able.

When we pull the moon closer and closer to the Earth, the moon will circle the Earth faster and faster in smaller orbits. Since the attraction force between the two bodies is always equal to the centrifuge force, there will be no impact to worry about.

Maybe we can arrange a controlled touch-down in some way, then, we will have two balls that bite into each other, ocean will form around the connecting ring and most sea bed will become dry land. There will be no month and a day will become about two hours long.

Maybe we can find a perfact orbit that keeps the moon some miles away from Earth and gives us the most benefit.