3555040
Beschreibung
Mindmap von lopezyersson321, aktualisiert more than 1 year ago
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Erstellt von lopezyersson321
vor etwa 9 Jahre
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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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