A look at 9/11 memorial waterfalls

This is part of a mock-up waterfall designed to test the waterfall that will be part of the National Sept. 11 Memorial and Museum that will be installed at Ground Zero. The mock-up is at the Brooklyn Navy Yard. (Jan. 22, 2010) Credit: AP
NEW YORK (AP) — Mock-ups of waterfalls meant to evoke memories of the Sept. 11 dead are spilling down nearly 30 feet into a pool in Brooklyn.
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The cascading effect of the waterfall designed by memorial architect Michael Arad was demonstrated to The Associated Press on Friday. Eventually the real thing will be at ground zero in lower Manhattan.
Builders have been tinkering with the mechanics of the design to ensure it runs smoothly when it opens by the 10th anniversary of the 2001 attacks. They need to test things like the flow and angle of the water.
Arad’s “Reflecting Absence” design sets waterfalls in two reflecting pools marking the destroyed World Trade Center tower footprints, surrounded by panels listing victims’ names.
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