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Green Energy in China

Video
5:09
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A Strict Carbon Diet

Video
2:58
Brian Greene Previews NOVA's "The Fabric of the Cosmos"

Brian Greene Previews NOVA's "The Fabric of the Cosmos"

Video
2:10
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Brian Greene Answers Your Questions

Video
1:07
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The 9/11 Memorial Mock-Up

Video
1:54
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Solving an Engineering Problem

Video
2:49
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Walls of Glass

Video
2:29
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The Memorial Plaques

Video
2:31
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Rebuilding 7 World Trade Center

Video
1:48
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The Spacetime Lemonade Stand

Video
2:30
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Reflections on the 9/11 Memorial

Video
2:20
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Heisenberg Humor

Video
1:32
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NOVA

Cars That Power the Grid

Electric cars may play a critical role in a future "smart grid."