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:
“Now different races and nationalities cherish different ideals of society that stink in each other’s nostrils with an offensiveness beyond the power of any but the most monstrous private deed.”
—Rebecca West (1892–1983)
“There is a Restlessness springing from the consciousness of power not fully utilized, which must be present wherever there is unused power of whatever kind. This is the restlessness of the germ within the seed, struggling upward and downward towards its proper life. ... it is a striving full of pain, the cutting of tender flesh by the fetters of the captive as he struggles against their pitilessness.”
—Anna C. Brackett (1836–1911)
“It does not follow ... that the right to criticize Shakespeare involves the power of writing better plays. And in fact—do not be surprised at my modesty—I do not profess to write better plays.”
—George Bernard Shaw (1856–1950)