History of the telescope - Wikipedia
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History of the telescope
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History of the telescope
A Prism Spectroscope of the type Thomas Edison used in the development of his light bulb
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History of the telescope - Wikipedia
Inventions
Inventions
History of the telescope - Wikipedia
Hans Lippershey | Biography, Inventions and Facts
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Who really invented the telescope? - BBC Science Focus Magazine
/Lipperhey_portrait-58b848b05f9b5880809d1797.jpg "Hans Lippershey: Telescope and Microscope Inventor")
Hans Lippershey: Telescope and Microscope Inventor
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Thomas Edison - Wikipedia
History of the telescope - Wikipedia
