Well, depends what kind of combat you mean. The time a laser beam fired from Earth would take to reach the Sun (8 min) or Mars (depends on the orbits) is less than the time than an ICBM launched from the USSR would take to hit the US. Still takes a while.Axzarious said:I derped about the distance there. Distances from earth to or the moon or the sun or mars though? Completely feasible.
The Moon in just over a second...there's a mirror put on the Moon so people can bounce lasers off it, find out how long it takes to return, and thus accurately determine how far away it is. If you can hit a mirror with a laser, you can hit other things.
Oh sure, was thinking something much more high tech. Currently there's nothing that would work, but then currently there's no need for it. I'd imagine something would be developed if there was a need for it.Axzarious said:Mirrors wouldn't be an adequate defense against the heat output against a laser feasible as your traditional laser rifle or lightsaber. First of all, Mirrors tend to only reflect certain frequencies, and they still absorb heat. Mirrors aren't perfect and have imperfections which wouldn't help reflecting adequately, which would just snowball the mirror's demise. The effect would be compounded by any dust or dirt that might be on the mirror, and if it's tarnished any? - All of that assumes that the laser is in the spectrum the mirror is able to reflect.
Yeah, that problem isn't going to go away. All very well to have a cool sci-fi weapon that works, only someone is likely to have a boring old conventional weapon that's cheaper and works better. For that matter, by the time laser guns are around, they won't be sci-fi anymore.Axzarious said:Hypothetically laser weapon could work, but it has to get past a lot of physics first, and then the oodles of energy required to actually produce something usable. A gatling gun that fires rockets would probably use less energy than a laser pistol.
OTOH, if for some reason you had a high powered laser, and you didn't have a firearm...