He took two wires and connected them to a battery. Then he attached a charcoal strip between the other ends of the wire and the charged carbon started glowing.
This was the first arc lamp.
He also invented the miner's safety lamp in 1815.
LightBulb
The electric light bulb is a glass bulb fitted with a wire filament, which glows when heated by electricity. Thomas Alva Edison invented the first practical electric bulb in 1879.
Additional Information
The light bulb has a simple structure.
The light bulb consists of a glass bulb with a metal filament, usually tungsten.
The glass bulb contains a noble gas, which prevents the metal filament inside the bulb from evaporating.
The bulb emits light when electric current heats the filament due to incandescence. Therefore, it is often called an incandescent bulb.
Invention of the Light Bulb: Davy, Swan and Edison - EnchantedLearning.com. The first electric light was made in 1800 by Humphry Davy, an English scientist. He experimented with electricity and invented an electric battery.
Answers & Comments
Sir Humphrey Davy
Light Bulb
The electric light bulb is a glass bulb fitted with a wire filament, which glows when heated by electricity. Thomas Alva Edison invented the first practical electric bulb in 1879.
Additional Information
Verified answer
Invention of the Light Bulb: Davy, Swan and Edison - EnchantedLearning.com. The first electric light was made in 1800 by Humphry Davy, an English scientist. He experimented with electricity and invented an electric battery.