Among the earliest milestones listed for electricity-generating wind turbines, geothermal electricity, and LED technology, which came first?
Dificultad: Fácil
Which year marks Piero Ginori Conti’s geothermal experiment that powered a small generator and lit several bulbs?
Dificultad: Fácil
Which milestone is associated with October 9, 1962?
Dificultad: Medio
Which sequence places these milestones in chronological order: the first electricity-generating wind turbine, the first documented geothermal electricity experiment, the earliest recorded observation underlying LED technology, and the first visible-light LED?
Dificultad: Difícil
When did Larderello become the site of the world’s first commercial geothermal power plant?
Dificultad: Medio
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