Tesla was the first to build a direct DC transmission tower.

He also "invented" AC.
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THe one thing I could never understand was his claim that there is a special horizontal wave of electromagnetic energy that is distinct and eluisive relative to electricity and light.

was he thinking in another dimension?

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The Russians took his "death ray" seriously. We have spy pictures of the scaler Electric weapons in Russia...we think.
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The best Economic engine for the USA now I believe is the alternative energy quest and procuction.