I think you all know some examples of shields used by spaceships, often they are presented like a bubble around the ship.
My question is how does it form the shield energy into a bubble. The bubble also has to remain in place around the spaceship, how can I explain this?
Can somebody tell me some good ideas how it might work and are there any better ideas of shields for spaceships?
Last question: how does the ship generate its shield?
I don't mean ship armor like a new steel or other materials it has to be an energy shield. I don't mean real physics, I am looking for a plausible reason how shields could work in a fictional world.