Brigade XO wrote:Just how little physical material is outside, say the orbit of Earth, that would get energized enough to glow if an grazer beam hit it? And how big would the "normal" inter-planetary particle of disbursed matter likely be----which is the precursor to : How big would a bit of matter caused to "glow" or even disintegrate in a flash of energy need to be to be visible from 50,000km by the human eye even with 100x optics....
Yeah, just shoveling salt water back into the ocean from the incoming tide.
Wikipedia's article on
interplanetary medium says it's about 5 particles per cubic cm (5 million per m³) in the vicinity of Earth. If we define a "hair thin" graser beam as a cylinder with an average 1 mm of radius, that's an average cross-section of π mm². Over half a million km, it covered a volume of 1570 m³. That's about 8 billion particles it could have vaporised.
In theory, can they be seen? Yes. In practice, no one will see them with their naked eyes. Whether the sensors can see them, it'll be up for David to decide (it's conceivable). The filming crew cameras are not subject to the limitations of technology, though.
Another detail about the IPM is that sufficient quantity of it WILL show, even to the naked eye. On a very dark night, away from light pollution, you can see the Sun's light reflected back to us. That's the
Zodiacal light, which was the PhD subject of Queen's Brian May (see
this video).
Except for things happening really really closet- like when Hexipuma made a delicate variety of Swiss Cheese out of The Golden Butterfly- dam little is going to be visible in real-time or at all in a space battle. Oh, we had the girl stand-in under a dome on Grayson watching nuclear explosions- pinpricks of light- from the battle with the Faithfull, but 30million KM?
That girl was Abigail Hearns.
I'm arguing that we can't see the graser beams themselves with our naked eyes, but almost everything else about combat should be visible. The graser mounts firing, the beams impacting and melting armour too, missiles exploding to produce grasers and ships exploding. I don't know which one would be brighter: the bomb-pumped graser emission by the missile or a ship's reactor going critical. Per unit of volume, the missile wins handily, but there's much more mass in the ship's reactor.
To be decided: graser beams hitting sidewalls and wedges. Do they light up? If they light up and distribute the energy over their full area, that's also going to be very bright.
Loss of reading on impellers- almost instantaneous change with standard sensors, certainly with military tactical. Changes in in speed and vector based on relative movement of target(s) with impellers from your sensors. Energy flairs (all kinds including gravitational) and, again, relative changes till loss of impeller data. So damage to your targets in space battle are going to have to be from what is shown- and reported to command at the same time by the crew managing the station- on the tactical scanners or a quick point-of-view shift to "close" by the target as it gets ravaged by one or more type of weapons systems hitting it.
I don't think we're going to see any of that. It's too brainy. For the same reason, we need to see the battles from the outside. It's too "clinical" to just see a tac plot.
I'd like to see nice displays showing a lot of detail. More than Okudagrams that are meaningless, show actual plots. But the audience will still need someone to explain what they're seeing.