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Cedar Rapids Gazette in Cedar Rapids, Iowa

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Newspaper

Cedar Rapids Gazette

Location

Cedar Rapids, Iowa, United States of America

Date

Feb 03, 1997

Page

15

How a lightbulb works in simple terms

The article explains an incandescent bulb uses a carbonized cotton filament in a vacuum to glow when heated. Tungsten filaments withstand higher temperatures, gas-filled bulbs reduce evaporation, and components like the lead-in wires exhaust tube and sealed base complete the bulb. General Electric Co. is thanked as a resource.

Lewis Latimer: Edison Pioneer and Civil Rights Draftsman

Lewis Latimer, son of a former slave, taught himself draftsman skills and drew patents for Bell and Edison. He illustrated early telephone patents, designed electrical systems in major cities, and worked with Edison’s lawyers on patents while teaching immigrants and advocating civil rights.

Lewis Howard Latimer Edison Pioneers Thomas Edison Alexander Graham Bell Edison Bell

Also Mentioned on This Page

General Electric Co Betty Debnam Universal Press Syndicate Mini Mini Spy Edison Laboratory Lewis Latimer Anacostia Museum Smithsonian Institution Washington, D.C Universal Press Syndica Tnevn CPAT X Enoh INS A.C Nthcam Eletworks
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