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The Galileo Project | Science | Telescope
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Christiaan Huygens - Wikipedia
Aerial telescope - Wikiwand
Christiaan Huygens Achievements in Astronomy | Science Facts
Christiaan Huygens [Cristian Huygens] also Hugenius or Huyghens; (14 April 1629 – 8 July 1695), was a Dutch physicist, mathematician, astronomer and inventor, who is widely regarded as one of the greatest
Christiaan Huygens - Wikipedia
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Portfolio Bryan Dekker
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Aerial telescope - Wikipedia
Huygenskijker Oude Sterrewacht Leiden
The mystery of Christiaan Huygens' flawed telescopes may have been solved
Incomplete aerial telescope, 1686-1691 | Science Museum Group Collection