I hear the navy, while testing out rail guns the friciton between the projectile and rail would creat [plasma, and thus limit the guns ability to accelerate the projectile.

when they would hit the concrete slab, there were ripples heading out form the impact sight as if the concrete turned to liquid and was instantly frozen.

I could only imagine the wipple sheild would take quite an impact an get pretty beat up, no doubt parts of the sheild would turn to plasma when it hit something, or at least liquify, or vaporize, I guess the trick is not to make it too thick. thick enough to break the object/turn them to plasma, thin enogh not to absorb so much of the blow they vaporize away.

In the ballpark, how far might we be talking between the shields? light seconds, lightminutes? light hours? I thought it takes quite a while for things to cool by just radiating off in the infra red.

-Justin Kelly