Telescope

Telescope

A telescope is an instrument that aids in the observation of remote objects by collecting electromagnetic radiation (such as visible light). The first known practical telescopes were invented in the Netherlands at the beginning of the 17th century, using glass lenses. They found use in terrestrial applications and astronomy.

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Famous quotes containing the word telescope:

    “The sight of a planet through a telescope is worth all the course on astronomy; the shock of the electric spark in the elbow, outvalues all the theories; the taste of the nitrous oxide, the firing of an artificial volcano, are better than volumes of chemistry.”
    —Ralph Waldo Emerson (1803–1882)

    “The telescope at one end of his beat,
    And at the other end the microscope....”
    —Robert Frost (1874–1963)