Tremont Street Subway - Power

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.

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Famous quotes containing the word power:

    In night when colours all to black are cast,
    Distinction lost, or gone down with the light;
    The eye—a watch to inward senses placed,
    Not seeing, yet still having power of sight—
    Gives vain alarums to the inward sense
    Fulke Greville (1554–1628)

    The power of the people and the power of reason are one.
    Georg Büchner (1813–1837)

    The dignity and stability of government in all its branches, the morals of the people, and every blessing of society, depend so much upon an upright and skilful administration of justice, that the judicial power ought to be distinct from both the legislative and executive, and independent upon both, that so it may be a check upon both, as both should be checks upon that.
    Thomas Jefferson (1743–1826)