|
No air, no blast wave.
You have to think in terms of energy. The force required to even nudge a large object is well beyond our current technology if you need to do it quickly. If you have a long time then the force required per unit time is much less, and possibly achievable. That's why we need to know about these things years in advance, maybe decades. Then all you have to do is push it gently for a long time.
As for impactors, you'd need something really big to deflect it, your car isn't deflected much by that bug that hits the windshield is it?
The main problem here is comprehension of scale, the human mind can't really come to terms with the masses and velocities involved here.
Cheers
Stuart
|