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:
“The individual protests against the world, but he doesn’t get beyond protest, he is just a single protester. When he wants to be more than that, he has to counter power with power, he has to oppose the system with another system.”
—Friedrich Dürrenmatt (1921–1990)
“What is charm then? The free giving of a grace, the spending of something given by nature in her role of spendthrift ... something extra, superfluous, unnecessary, essentially a power thrown away.”
—Doris Lessing (b. 1919)
“What is genius—but the power of expressing a new individuality?”
—Elizabeth Barrett Browning (1806–1861)