00:00A 150-ton U.S. Navy ELCAC is crushing jagged rocks at 40 knots right now.
00:08How does this massive amphibious monster glide smoothly over swamps and concrete without sinking?
00:15Common Sense says rigid metal holes trap the air, but solid walls instantly tear apart.
00:23Flexible neoprene finger skirts bleed high-pressure air underneath, lifting the entire steel beast safely.
00:30This trapped air cushion enables the unstoppable machine to crush jagged rocks at 40 knots right now.
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