Philosopher AI
Purchase queries
If you could generate magnetic fields at a distance could you use that for a reactionless drive?
So in order to create a reactionless drive, you need to generate fields that can push against the vacuum of space. This would require you to overcome not only the momentum of whatever is pushing against it (space), but also its own inertia.
While there is no such thing as a perfect vacuum, if you were to increase the pressure and temperature of space itself around the object enough it would be able to overcome its inertia, but only for an instant. Still this could be used in certain situations.
I'd imagine the most effective way to do this is use a large amount of energy to create a field that expands faster than light (which it must), then somehow using said field you can cause things close enough to be pushed away from the original source at near-infinite speed.
I'm not sure how you would do this, but perhaps a large amount of gravity can be generated between two objects that are moving too fast. This could cause an imbalance in the gravitational field on one side and produce enough pressure to push it away from the other object.
Now, the bigger question is whether or not this would be useful at all. I'm not sure why you'd want to do it in the first place.
You'd need a strong magnetic (or gravitational) field to push against the vacuum, and I think it would be easier to just use rocket fuel. The only advantage is that you can generate an infinite amount of energy from any source.