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Mar24-08, 02:53 PM
<snip> But if I threw a rock of mass M at a window, is the GR distortion in space-time from that little rock sufficient to explain the potential affect that overcomes the strong the EM forces that are binding the glass together? <snip>
Why are you invoking gravity, either Newtonian or GR, to explain a rock breaking a piece of glass? The electromagnetic interactions between the molecules of the rock and of the glass are what give rise to the forces that eventually break the glass.