Edison's filament lamp, American, 1879.

Edison's filament lamp, American, 1879.
Very early incandescent electric lamp made by Thomas Alva Edison (1847-1931), this lamp has a single loop of carbon which glowed when a current flowed through it. The glass bulb (made by the glass blower, Boehm) was evacuated so that there was so little oxygen in the bulb that the filament could get white hot without burning.
 
Currently on display in:
Making the Modern World
Year made :
1879
Inventory number :
1880-70
 

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