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.
MENTIONED IN THIS ARTICLE
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