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The role of chemistry in Thomas Edison's inventions
lightbulb lightbulb: Ediswan A sign in a London electrical store reads Has the EU banned your light bulbs? with a large label stating BANNED over an image of a light bulb, displayed among boxed bulbs on a shelf. Thomas Edison sodium-vapour lamp bulb A glowing light bulb radiates bright yellow light with its reflection visible below, set against a vibrant orange and yellow background.
Know how halogen and fluorescent bulbs, as well as sodium, mercury, and metal-halide vapour lamps, and LEDs work
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lightbulb
lightbulb A 3.4-watt lightbulb developed by Lemnis Lighting.

lightbulb

device
Also known as: light bulb
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The role of chemistry in Thomas Edison's inventions
The role of chemistry in Thomas Edison's inventionsHow Thomas Edison changed the world.
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lightbulb, electric incandescent lamp based on a glowing metallic filament enclosed within a glass shell filled with an inert gas such as nitrogen. See incandescent lamp; lamp.

This article was most recently revised and updated by Amy Tikkanen.