Diy Galileo Telescope Lens Group 30mm Diameter -75mm Focal Length And 50mm Diameter 300mm Focal Length - Lenses - AliExpress
Galileo Telescopes serious errors in the optics, the telescopes dimensions, and what one really see's looking through his telescopes found in the literature.
History of Science Society -- Committee on Education
Galileo FS-80Z 800mm x 80mm Reflector Telescope Hammertone - Walmart.com
Galileo and the telescope – Explaining Science
What are the Different Types of Telescopes and how have they been Reinvented over Time? – A Lens Through Our Universe
History of Science Society -- Committee on Education
Amazon.com : Galileo 800mm x 80mm Astronomical Telescope Kit with Zoom Lens : Electronics
Refractive Telescopes
Galileo and the telescope – Explaining Science
Galileo Galilei: The Invention of the Telescope and Modern Astronomy