The Physics of the Wall (Martin's, not Waters')
January 10, 2012 11:06 AM Subscribe
Suppose there's a 700-foot-high wall of ice sitting in an environment that resembles, for the sake of argument, Alaska. I have some questions about the physics and long-term stability of such a structure.
posted by COBRA! to grab bag (16 answers total) 9 users marked this as a favorite
Say this wall does include a foundation and some low-level backbone of very large stones, but it's mostly ice. While the air temperature is always below freezing, it's not uncommon for there to be sunny days where the wall "weeps" with meltoff. Moreover, there are men patrolling the top of the wall, and the friction of their presence is enough to require at least some reconstruction and reapplication of gravel for footing, etc.
My question is: would the wall be stable over a period of centuries, or even millenia? Or would the loss of mass from melting (and occasional Wildling attacks) eventually just whittle it down to a collection of frosty foundation stones? Would geologic activity result in cracks?