jueves, 5 de octubre de 2017

the light bulb


-INVENTOR: Thomas Alva Edison
-YEAR: 1.879
  • You can see in the darkness.
  • Nowadays, it’s cheap and is of low consumption.
  • You can obtain it from the solar light.
  • Before it existed the bulbs, there were used candles that were very dangerous because they could to inflame the house.

Thomas Alva Edison. (2017, 13 de septiembre). Wikipedia, La enciclopedia libre. Fecha de consulta:
08:02, octubre 2, 2017

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