Borbarad
Advocatus Diaboli
Originally posted by Zampanó
We are clearly talking at cross purposes. When I said "momentum," I meant it literally as "in classical mechanics, momentum (pl. momenta; SI unit kg·m/s, or, equivalently, N·s) is the product of the mass and velocity of an object (p = mv)." Look at how that will affect the outcome of the spell.
From that point onwards, your argument makes sense. Well done, pal.
Just some minor points here:
Not only is that incongruous with what we've seen in other immobilizing spells (immobulus did not have that effect, and even the Basilisk didn't cease 100% of molecular movement in its victims), it would be dangerous to Harry's health to use such a spell. Preventing 100% of all motion in any region would immediately change that region's temperature to zero degrees kelvin. 0K is very, very cold. It is so cold that it even makes Faunus's mom look hot by comparison. That temperature would have adverse effects on Harry's body.
First: You really can't compare the different spell effects and your comment on the Basilisk effect is simply wrong. The victims appear to be, rather literally, petrified. As Madame Pomfrey puts it: "There's no point in talking to a petrified person. She won't hear a word you're saying."
This is notably different from the effect of the Immobilus (which obivously allowed the victims to perceive their surroundings) and even Petrificus Totalus (when Malfoy used that spell on Harry in "Half-blood prince", Harry could still perceive anything).
The second difference is, that the bodies of the victims seem to be petrified as well, which is demonstrated because they are even lying in the Hogwarts hospital wing in the same positions they were found in. Nothing could be changed (they obviously didn't even move when dropping on the ground). In contrast, Harry's nose is broken by Malfoy when the latter used Petrificus Totalus on him.
That aside, the basilisk effect did even affect the Near-Headless Nick, who is a ghost, meaning he isn't much more than ionized air particles.
Second: Literally making all movement impossible in Harry body would cause ill effects how? If all movement is "frozen" instantly, he is in a stasis field, which means that nothing (not even the cold) would affect the current state of his body, since tissue (just for example) couldn't take damage from that low temperatures. The effect would just be dangerous if not happening instantious (much like warming him up again), which is exactly what would happen, due to magic.
I think that this is a more clear expression of my understanding of the spell. Given this interpretation, the targeted Borg ship will be left unable to maneuver while still free to act. Dumbledore would not have the line of sight to target individual drones, and nothing suggests he can target more than one thing at a time. (The spell required a gesture from his hand, so that is at most two cubes held in place, even if I cede that restriction.)
Excuse me, but wouldn't a complete inability to manouver also affect the (outside) weapon systems, meaning that they couldn't aim there weapons any longer? Not that it matters that much, provided they would be caught mid-air with their "downsides" to the target. Did they have weapon emplacements on the "low side" of the cubes on screen. Can't recall them firing from there.
Apparently, the spell would still render an orbital bombardment impossible...
Now, the Hogwarts shields face a similar problem. They are in place to defend from magical attack, and seem to also protect against physical assault. However, the Borg weapons are not physical or magical in nature. They use energy weapons. The shield has not been observed to defend against any sort of EM radiation. There simply is not enough evidence to believably assert that the shield will be able to block a Borg attack.Your observation about ST shields is a good one. However, as shown by the Borg shields' ability to adapt to various frequencies, it seems obvious to me that Starship shields are just not keyed in to wavelengths* of the visible spectrum. There is no evidence that the Hogwarts shields are keyed in to any wavelength.
Hermione's spell is effective at filtering some visible wavelengths, but that spell is keyed for concealment. Rather than a defensive barrier, the shield simply and selectively censured what light passed through. As I've said, the Hogwarts spell has not been shown to do even that.
Apparently, I have to point to the OP now. The Borg cubes are up in the sky, fighters below them (in the line of fire), drones on the ground. An instant orbital bombardment appears to be rather unreasonable here, provided the own troops are in the line of fire. This doesn't seem to fit the intention of the thread-starter (and is still illogical, even if it does).
Now the Borg Cubes (or fighters) start to fire on the grounds of Hogwarts, which they still can't plot and therefore not accurately aim at (if they would be able to aim at all). This means, they are firing rather blindly on some spot on Earth.
Giving their desastrous fail with orbital bombardement in "First Contact" (with perfect line of sight), I don't think they will archive anything there fast, regardless if the protective spells would offer some protection from their energy weapons, effectively allowing the Wizards to either fire back or / and evacuate the building.
Assuming that the regular rule of "no morals, they want to see their opponents dead and nothing else" applies, the younger students of the castle might perish, while anybody capable of getting on a broom or apparating (all sixth grades, seventh grades, the teachers, Fawkes) will launch a counter-attack on the Borg.
In which case we're back at the initial points:
1) The Wizards would run rampant through the Borg cubes.
2) They could even place an "anti tech bubble" around a Borg Cube, which means "instant death" for the Borg.
3) They could unload their entire magical arsenal against those Cubes from the ground, being still unplottable for their respective enemies.
4) They could "take over" some Borg Cubes (Imperius, Legilimency)
Hell. I can't even figure out, why they wouldn't simply say "Evanesco" and make the space ships disappear...
You would basically need to assume that they will turn the entire Hogwarts ground (which includes the Lake, the Forbidden Forrest, Hogsmeade, the Quidditch Arena and so on) into scorched Earth almost instantly, otherwise a (probably lethal) counter-attack would happen and the Wizards would still win - no matter if they could bombard the school from the orbit or not.