国立アメリカ歴史博物館のインスタグラム(amhistorymuseum) - 1月28日 12時22分

Today in 1880: Thomas Edison receives a patent for the electric incandescent lamp.

Edison tested over 1,600 materials for the filament, the part that glows when electricity flows through. Coconut fiber, fishing line, and beard hair didn't work. What did? Carbonized bamboo.

#electricity #moodlighting

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