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Weekend field trips on the Web

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Jan. 30, 2009, 5:00 PM UTC

By Alan Boyle, Science Editor, NBC News

'Nova' on PBS: 'The Spy Factory'
Economist: What to make out of spider silk
Popular Mechanics: Decoding 'Lost' technology
Popular Science: Artificial gravity ... fact and fiction

Alan Boyle, Science Editor, NBC News

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