3542296
Descripción
Mapa Mental por paolatoro44, actualizado hace más de 1 año
|
Creado por paolatoro44
hace más de 8 años
|
|
the evolution of electric power
- in the early 1800s, the first time
electricity was avariable for cities
like new york
- electricity presented some denger because it could not be seen as it
travelled thourgh the wires , so it was inportant to warn people about
the hazards of this amaang new invention
- later the menters also had a revoluing disc that
measured the energi consumption in kilowatts hour
or kilowatts consumed in an hour
- another type of lamps the
flourescent linghts, were generated
by stimulanteing a sudstance with
invisible ultraviolet light
¿Quieres crear tus propios Mapas Mentales gratis con GoConqr? Más información.