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:
“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)
“The only wealth in this world is children, more than all the money, power on earth.”
—Mario Puzo, U.S. author, screenwriter, and Francis Ford Coppola, U.S. director, screenwriter. Michael Corleone (Al Pacino)
“I only wish that ordinary people had an unlimited capacity for doing harm; then they might have an unlimited power for doing good.”
—Socrates (469–399 B.C.)