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 bitterest creature under heaven is the wife who discovers that her husband’s bravery is only bravado, that his strength is only a uniform, that his power is but a gun in the hands of a fool.”
—Pearl S. Buck (1892–1973)
“The power of this experience [fatherhood] can never be explained. It is one of those joyful codings that rumbles in the species far below understanding. When it is experienced it makes you one with all men in a way that fills you with warmth and harmony.”
—Kent Nerburn (20th century)
“With all of my power of living
I am forced to lie on the floor.”
—John Ashbery (b. 1927)