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2 lugl 1875 anni - Графитовая лампа накаливания

Descrizione:

С. А. Козлов получил патент на лампу накаливания с телом накала в виде графитового стерженька, помещённого в стеклянной колбе, наполненной азотом

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Профессия электрик

ByАлина Кутнякова

25 nov 2018

0

0

550

Data:

2 lugl 1875 anni

Adesso

~ 150 years ago

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