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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
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1 jan 1840 ano - Warren de la Rue Made a design with platinum

Descrição:

Enclosed a coiled platinum filament in a vaccum tube and passed electric current through it

Adicionado na linha do tempo:

history of light bulb

ByKarthika C M
6 fev 2020

Data:

1 jan 1840 ano
Agora
~ 184 years ago
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