Bruce Fisher was making reference a couple of days ago to a supposed mark on Filomena's inside blackout shutters, supposedly made by the rock found on Filomena's floor as it supposedly flew in through the glass from the outside.
I had mentioned that I was going to make a Powerpoint, and started out to do so. However, I'm getting bogged down again with work, so instead of putting out a smoother presentation, please find below the flow of the main ideas I was going over.
In the end, I believe it is impossible that the rock made that mark on the inside shutter, or at least it certainly didn't make that mark when flying through the window from the outside.
[qimg]http://img98.imageshack.us/img98/4262/rockdoesnthitmark1.png[/qimg]
[qimg]http://img708.imageshack.us/img708/8017/rockdoesnthitmark2.png[/qimg]
Now let's twist the rock around progressively and see if it's logical to believe that in any one of the scenarios the rock may have been capable of making Bruce's fly-through mark.
[qimg]http://img87.imageshack.us/img87/8067/rockdoesnthitmark3.png[/qimg]
In none of the scenarios does the rock hit the staging mark. Scenario 4 is where it comes closest, but even there if I got the shape of the rock wrong and it had a sharp point right on top of the staging mark, that scenario "4b" would require the flight of the rock to be perfectly straight, with no wobbling. That is just about impossible for an irregularly shaped rock.