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Established 15,000 B.C. |
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Volume 26, May 1608.
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| This instrument is the result of the combination of two lenses, one plane-concave and the other plane-convex inside a tube. The lenses are placed with one close to the eye (ocular) and the other at the other end of the tube (objective). The invention can be imputed to artisans from Holland, but it was Galileo who improved the instrument, increasing its enlarging power and transforming it into a formidable instrument for astronomical research. According to the testimony of Faber, it was Prince Cesi who, in 1611, was the first to call the instrument a "telescope", as it permitted objects to be seen from a distance. |  |
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