https://hubpages.com/education/Galileo-and-the-Telescope-How-400-Years-Ago-Galileo-Changed-the-World
Galileo and the Telescope: How 400 Years Ago Galileo Changed the World | HubPages
Galileo, an Italian professor of mathematics, did not invent the telescope. No one knows for sure who the first inventor was. But this new device spread...
galileo and the telescope400 years