1 gen 1802 anni - Invention of light bulb

Descrizione:

At the beginning of 19 century, 1802, Humphry Davy invented the first electric light. Many years later, in 1879, Thomas Alva Edison, he didn't invent but made the first commercially practical incandescent light. The creation improved the benefits of our standard of living since it didn't have the creation. Would result in darkness during moonlight time. The business of the light bulb, had a good impact since light is a demand for anything. In economics at general, light helped develop works for late hours incrising economy (positive effect).

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