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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: locogringo who wrote (895773)	10/22/2015 6:16:30 PM
From: TideGlider	Respond to of 1586972

When traveling the Panama Canal from the Pacific Ocean to the Atlantic Ocean (via the Caribbean Sea), or vise versa, a ship must cross an area much higher than sea level, like climbing and descending a steep hill. A waterway large enough and deep enough to carry huge ships cannot be sustained on a hill. The locks were dug to raise and lower ships at strategic points to a level higher or lower on the waterway, like stair steps.