The AC/DC power debate was mostly settled in the 19th century. When was the last part of the Direct Current power grid shut off in New York?
(40 points)
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In radio broadcasting, for what does the abbreviation "AM" stand?
(20 points)
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In 2004, the United States was the largest single consumer of world energy. Which country was second?
(30 points)
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What year was the first "Christmas Tree" lit up by electricity and not candles?
(50 points)
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