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| Lightbulb 2.0: Double the Life, Halve the Materials by peekay at  7:02 pm EST, Feb 13, 2005
 |  | Excerpt: "Old way: 35 grams. x number of hours. Effort to buy, change bulb. New way: 35.5 grams. 2x number of hours. Less effort to "change" bulb." Clever. -Pk |  
 
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