3555040
Descripción
Mapa Mental por lopezyersson321, actualizado hace más de 1 año
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Creado por lopezyersson321
hace más de 8 años
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The evolution of electric power.
- in the early1800´ the first thime
electricity was available for cities like
new oyork Paris an London.
- electricity precented some danger because it could
not bee seen at is travelled throug the wires so it
was important to warn people
- thomas a edison invented the firts electrical
current meten it measured the amount of
metal deposited one cooper plate indicating
- the light bulb too has gone
through a series of developmens
by thomas edison.
- another type of lamps the fluorescent
lights were generated by stimulating a
substance with invisible ultraviolet light
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