Galileo Refractor Telescope Lens Original

TELESCOPE takes viewers on a tour of the history of the telescope from Galileo to Hubble and NASA's James Webb Space Telescope, currently being built and launching in 2018, exploring our efforts to understand our place in the stars

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Galileos Inventions

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What Did Galileo Invent?

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12 Ancient Greek Inventions and Technology - World History Edu

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$William Optics has just announced the newest refractor in their popular RedCat line, the MiniCat 51! 🔭⁠ ⁠ This internal focus design refractor has a focal ratio of f/3.5 and weighs in at only 5lbs, making this new scope exceptionally fast and lightweight. | High Point Scientific$