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View Diary: WHDH photos of a package and explosion at Boston Marathon (67 comments)

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  •  I think (2+ / 0-)
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    blue aardvark, onanyes

    Bombs and explosions achieve direction if there is less resistance in one direction than there is in others. You can purposefully design a bomb casing to be weak in one spot so most of the force gets directed to that spot. Don't rely on me as what I just said could be a Physics fail because it's been awhile since I had to consider something like this, probably my last physics exam :)

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