LinuxCon: Dragons and penguins in space
Posted Sep 21, 2012 15:16 UTC (Fri) by khim
In reply to: LinuxCon: Dragons and penguins in space
Parent article: LinuxCon: Dragons and penguins in space
space offence against ground targets is hard.
offence against satellites is relatively easy (a bucket of bolts in the right orbit)
Well, the rest of the post is pretty pointless, isn't it? All the worthwhile targets (machines and humans, most importantly troops) are on the ground. So we have a weapon which is hard to deploy and use but very easy to stop. This is not something military will be interested in.
As for speed being critical for space based attacks, that depends on the situation. It doesn't matter if an asteroid is redirected in days, weeks, or even months if it's going to take months for anyone to get to it and be ready to redirect it to go elsewhere.
You are planning to use your brand-new, top-of-the-art weapon against low-tech barbarians? There are many other ways to kill low-tech barbarians believe me.
If you think an aircraft flying into a building at a few hundred miles an hour is bad, it pales in comparison with something hitting at even low orbital velocity (remember, energy is M*V^2), at those speeds you don't _need_ a warhead.
Right. But this equation works both ways: to reach this velocity you need a warhead-equivalent, to alter this velocity you need a warhead-equivalent… at the stage where someone can create space-based weapon s/he can create pretty potent non-space-based ones, too… and they are hundred times more practical.
It is well within the capability of the satellite launching nations to build space-based weapons that would be extremely powerful, but all these nations have agreed not to go there, and so far none of them has been pressed enough violate (or at least to admit to violating) that agreement.
Ha. How many other such humanitarian agreements were kept? ABMT? CFE? These are only short-lived (by historical measures) papers. No, space-based weapons are not developed because they make no sense. As you've said: space offence is hard, space defense is [relatively] easy. Everything else follow from these two facts.
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