Anyone with a lick of sense would question if a 757 hit Pentagon why don't we see one. <img src="/forums/images/graemlins/wink.gif" alt="" />

Some incredible physics here. A force applied to the upper portion of the pole shears the base evenly at the bottom.

Well not always evenly at the bottom - sometimes evenly at the top...almost - exactly where it was designed to break <img src="/forums/images/graemlins/lol.gif" alt="" /> :
[Linked Image]

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