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MengerSponge
3,561 karma · joined January 16, 2015
submissions
comments
Air-to-Air Heat Exchangers for Healthier Energy-Efficient Homes
ndsu.edu
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272 pts
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MengerSponge
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180
The Secret World of Russia's Cold War Mapmakers
wired.com
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4 pts
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MengerSponge
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1