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Telescope vs Celatone - What's the difference?

telescope | celatone |

As nouns the difference between telescope and celatone

is that telescope is a monocular optical instrument possessing magnification for observing distant objects, especially in astronomy while celatone is a device invented by Galileo Galilei to observe Jupiter's moons with the purpose of finding longitude on Earth. It took the form of a piece of headgear with a telescope taking the place of an eyehole.

As a verb telescope

is to extend or contract in the manner of a telescope.

telescope

English

Noun

(en noun)
  • A monocular optical instrument possessing magnification for observing distant objects, especially in astronomy.
  • Any instrument used in astronomy for observing distant objects (such as a radio telescope).

    • Derived terms

    * telescopic * radio telescope * reflecting telescope * refracting telescope * terrestrial telescope

    Verb

    (telescop)
  • To extend or contract in the manner of a telescope.
  • To slide or pass one within another, after the manner of the sections of a small telescope or spyglass.
  • To come into collision, as railway cars, in such a manner that one runs into another.

    • See also

    * binoculars * microscope

    celatone

    English

    Noun

    (en noun)
  • A device invented by Galileo Galilei to observe Jupiter's moons with the purpose of finding longitude on Earth. It took the form of a piece of headgear with a telescope taking the place of an eyehole.
  • * 1995 :
    • "...Galileo had designed a special navigation helmet for finding longitude with the Jovian satellites. The headgear—the celatone —has been compared to a brass gas mask in appearance, with a telescope attached to one of the eyeholes."

    References

    * Sobel, Dava (1995). Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time. Penguin. ISBN 0-14-025879-5.