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.
Read more about this topic: Tremont Street Subway
Famous quotes containing the word power:
“Doublethink means the power of holding two contradictory beliefs in one’s mind simultaneously, and accepting both of them.”
—George Orwell (1903–1950)
“The preservation of life seems to be rather a slogan than a genuine goal of the anti-abortion forces; what they want is control. Control over behavior: power over women. Women in the anti-choice movement want to share in male power over women, and do so by denying their own womanhood, their own rights and responsibilities.”
—Ursula K. Le Guin (b. 1929)
“The power confided in me will be used to hold, occupy and possess the property and places belonging to the government, and to collect the duties and imposts.”
—Abraham Lincoln (1809–1865)