00:00The Panama Canal miter gates slam shut under millions of gallons of water.
00:04How do these towering metal structures prevent massive water leaks without using a single rubber seal?
00:11Most engineers assume heavy synthetic gaskets are required to block the intense hydraulic pressure.
00:17Instead, precision machine steel edges press tightly together, creating a watertight metal-to-metal seal.
00:25This clever geometric fit blocks the tide, proving that the Panama Canal miter gates slam shut under millions of gallons
00:33of water.
