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:
“I call the discourse of power any discourse that engenders blame, hence guilt, in its recipient.”
—Roland Barthes (1915–1980)
“If Paris lived now, and preferred beauty to power and riches, it would not be called his Judgment, but his Want of Judgment.”
—Horace Walpole (1717–1797)
“we are laid asleep
In body, and become a living soul:
While with an eye made quiet by the power
Of harmony, and the deep power of joy,
We see into the life of things.”
—William Wordsworth (1770–1850)