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23 Jan 2017, 11:56 pm by Lawrence B. Ebert
L.R. 709 (2012) ] includes:Edison's particular inventive contribution was the discovery of a new filament - a particular species of bamboo -that worked better than Sawyer [p. 723] and Man's carbonized paper because it had a higher resistance to electricity andso turned more of the power routed through the bulb into light. [read post]