RE: I don't think that the MOAB killed anyone.
April 15, 2017 at 8:41 am
(This post was last modified: April 15, 2017 at 8:42 am by The Grand Nudger.)
(April 15, 2017 at 8:23 am)Jehanne Wrote: I just don't think that an above-ground explosion against a below-ground target makes much sense, from a physics POV.You must be using a novel sense of "makes sense". I think that you're speaking intuitively. The ground does offer cover from indirect fire, that's why we build bunkers...but that protection is not absolute or uniform. The bomb in question is a big fuckin bomb precisely -because- the ground does offer protection. If it were a smaller bomb, or detonated at the wrong height, it would have less penetrative ability.
Quote:As for "gaining force over distance" that would be equivalent to saying that a bullet gains speed after leaving the muzzle of a gun (neglecting its vertical drop, of course!), and that is false.
Bullets -do- gain speed from the time that the blast cap is struck until some distance x, variable by caliber and load..which sometimes does and sometimes doesn't exceed the length of the barrel....depending on the length of the barrel......that's actually a key concern in barrel and round design. Ideally, the barrel is as long or slightly longer than the acceleration window..in order to deliver all usable force to a single point - accuracy.
Think about the corollary. If you doubt that bullets accelerate, or that blast waves accelerate..you are are indicating your belief that the speed at which either moves is -instantaneously- achieved at detonation.......
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