[acsinuk]

Yes, it is strange and beautiful and I accept that to have energy we must have E volts per metre at right angles to an area of flux H per square metre of magnetized space.
This magnetism is normally produced by a loop of current in an alternator making 3D electricity.
 One could argue that magnets can exist quiescently and capacitors could hold a static DC voltages but if they move with respect to each other then we will have energy.
CliveS

[A Davis]

I did digress from the post, an electric rocket already exists and is known as an ION rocket, a gas is ionised and accelerated using an electron gun small ones are used in satellites. I don't know if one can build one big enough for Jaiii. There is still a magnetic field inside a capacitor acsinuk one cannot remove the stored electrons magnet field, they do align.

[acsinuk]

Interesting!  Conceptually, I can imagine that the electrons in a fully charged capacitor are dormant and aligned magnetically. However, to produce energy the current flow must produce a magnetic loop flux to move at right angles to the voltage field. There is no problem for jaiii to fire charged gas ions from a satellite to correct its position as Newtons laws of action and reaction force being equal and opposite will apply.
CliveS

[A Davis]

I like the word interesting, thank you acsinuk. The current flow occured when the capacitor was charged, energy was being produced then.