Sir Humphry Davy invented the light bulb in the form of the carbon-arc lamp. Edison's laboratory invented the first practical lightbulb as we know it today, using a glowing filament instead of carbon-arc (others had glowing filaments, but Edison's people made it work.) Hanaman and Just invented the tungsten filament for Tungsgram, and William Coolidge invented the ductile tungsten filament we still use today. Others improved on it by coiling and filling the bulbs with inert gases, but it all comes back to Sir Davy's arc lamp.
Latimer's invention of better carbonized filaments is not to be overlooked, this improved the usefulness of bulbs substantially. He was employed at Edison's lab when this happened, so it was building on previous work.
Sir Humphry Davy invented the light bulb in the form of the carbon-arc lamp. Edison's laboratory invented the first practical lightbulb as we know it today, using a glowing filament instead of carbon-arc (others had glowing filaments, but Edison's people made it work.) Hanaman and Just invented the tungsten filament for Tungsgram, and William Coolidge invented the ductile tungsten filament we still use today. Others improved on it by coiling and filling the bulbs with inert gases, but it all comes back to Sir Davy's arc lamp.
Latimer's invention of better carbonized filaments is not to be overlooked, this improved the usefulness of bulbs substantially. He was employed at Edison's lab when this happened, so it was building on previous work.
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