Tag Archives: spheres. strong

Bulletproof Kevlar and stainless steel. What do they have in common? They share an extreme strength and hardness, unparalleled by many other substances. In fact, up until this point, bulletproof Kevlar was the hardest organic material ever discovered. Though Israeli researchers have forced Kevlar to take a back seat to a new material which is not only harder than Kevlar, ...

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