Let's imagine there are already interplanetary spacecrafts and travel. Would it be possible to create electromagnetic accelerator somewhere in the outer space? It would work this way:
There would be a long platform, which would emit electromagnetic waves in specific plates in following scenario:
- First plate, the nearest to the spacecraft, would emit electromagnetic wave, in order to pull (or maybe push) the spacecraft.
- First plate would turn off.
- Second plate, the nearest to the spacecraft, would turn on and pull the spacecraft etc.
As the frequency of turning on/off the plates would be increasing, the speed of the spacecraft would be increasing as well (we are in vacuum).
Could be this approach applicable in reality, could it pull the spacecraft to the desirable speed? I know it would be pretty expensive, but we could avoid burning fuel that can be used e.g. during landing.
Thanks for any constructive advises and explanations.