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:
“There is a place where we are always alone with our own mortality, where we must simply have something greater than ourselves to hold onto—God or history or politics or literature or a belief in the healing power of love, or even righteous anger.... A reason to believe, a way to take the world by the throat and insist that there is more to this life than we have ever imagined.”
—Dorothy Allison (b. 1949)
“Of Heaven of Hell I have no power to sing,
I cannot ease the burden of your fears,
Or make quick-coming death a little thing,
Or bring again the pleasure of past years,”
—William Morris (1834–1896)
“Let us rise in the moral power of womanhood; and give utterance to the voice of outraged mercy, and insulted justice, and eternal truth, and mighty love and holy freedom.”
—Maria Weston Chapman (1806–1885)