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 power of consumer goods ... has been engendered by the so-called liberal and progressive demands of freedom, and, by appropriating them, has emptied them of their meaning, and changed their nature.”
—Pier Paolo Pasolini (1922–1975)
“If you look at history you’ll find that no state has been so plagued by its rulers as when power has fallen into the hands of some dabbler in philosophy or literary addict.”
—Desiderius Erasmus (c. 1466–1536)
“For the most part, punishment makes men harder and colder; it concentrates; it sharpens the sense of estrangement; it strengthens the power of resistance.”
—Friedrich Nietzsche (1844–1900)