Re: Anyone out there
I'm no expert, but here goes: Accelerating and steering electrons is easy using magnets. Your monitor is doing it right in front of you (unless it's a flatscreen). Any atomsmasher does this. The problem with doing this over a very long distance is that the electrons tend to repel each other, and the beam spreads. Also, it only works well in a vacuum, so an Earth-based cannon may not be the best bet.