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I'm no rocket scientist, but I'm filthy rich. I'd enough money to launch a few private satellites. My master plan is to turn my next satellite into a weapon. Specifically, it will be a laser gun, but in orbit.
Now, hiring a engineer who know how to work with both weapon and satellite is tricky, but I know a guy. The thing is, I want to know if it was in fact, plausible. There's no point hiring anyone if your plan is doomed to fail from the beginning, right?
Anyway, the weapon I had in mind don't do anything flashy as vaporizing cities, I only want it to be able to start fires with accuracy, for example, heat a running tank truck to explosion, or just to burn things in general.
I figured a solar power may not have enough energy to do that, but what else could I use as power source? And then accuracy itself is hard to achieve, how do I get it to track a moving vehicle?