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:
“Mischief springs from the power which the moneyed interest derives from a paper currency which they are able to control, from the multitude of corporations with exclusive privileges ... which are employed altogether for their benefit.”
—Andrew Jackson (1767–1845)
“With all of my power of living
I am forced to lie on the floor.”
—John Ashbery (b. 1927)
“I should fear the infinite power and inflexible justice of the almighty mortal hardly as yet apotheosized, so wholly masculine, with no sister Juno, no Apollo, no Venus, nor Minerva, to intercede for me, thumoi phileousa te, kedomene te.”
—Henry David Thoreau (1817–1862)