Tremont Street Subway - Power

Power

From its inception, the subway used trolleys powered by electricity from overhead lines, made possible by the invention of the trolley pole in 1880 by Frank J. Sprague. However, the modern line has been pantograph-only since the trolley wires were modified in the 1990s.

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Famous quotes containing the word power:

    The only government that I recognize—and it matters not how few are at the head of it, or how small its army—is that power that establishes justice in the land, never that which establishes injustice.
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