Bulletproof Vests

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armor is to be impervious to
a bullet. The function of ceramic armor is to slow the bullet abruptly by
the hardness of the ceramic and to dissipate the bullet's energy as it
destroys the armor at the point of impact; the tiles or plates of ceramic
bulletproof vest thus have to be replaced once they have stopped a bullet.
The textile vest deforms the bullet and then dissipates its energy,
entangling it in the vest's many layers.
A textile bulletproof vest is fashioned of sixteen to twenty-four
layers of nylon cloth of a heavy weave, the layers stitched together like
quilt. Any ordinary pistol or sub-machine gun bullet striking the garment
is immediately flattened as it hits the outermost layers, and the new
mushroom-shaped slug dissipates its energy as it presses against the
remaining thickness of the vest, unable to penetrate its overlapping layers
of coarse mesh. The wearer is usually bruised by the impact of the bullet,
but without serious consequence. The more ...

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