Gallery: Polar Umbrella: Ice Sheet Regenerating Skyscraper Wins the 201...

The umbrella uses salt water as a source of renewable energy generated in the centrally positioned facility which uses osmotic technology- diffusion of fluid through a semipermeable membrane.

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1 Comment

  1. Jeff Boyer March 17, 2013 at 11:24 am

    What happens when the umbrella flips up? I hate it when that happens

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