![]() A faster shell does not necessarily go through more armour, but, like a pebble thrown into a pond, it makes a bigger splash.Īrmour penetration is increased by concentrating the force of a shell into as small an area as possible, so the projectiles tend to look like giant darts. Metal flows like putty, or simply vaporises. ![]() When metal meets metal at five times the speed of sound, hardened steel shatters like glass. To understand why DU makes a good anti-tank weapon you have to enter the Alice In Wonderland world of high-energy collisions. It is a poisonous heavy metal like lead or mercury, but only slightly radioactive. U-235 is used in reactors and atomic weapons once it is extracted, the rest is depleted uranium (DU). In its native state it is a mixture of highly radioactive uranium-235 and less active U-238. Metallic uranium occurs naturally in tiny quantities.
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