1 ene 1718 año - [1718] John Hadley improves the precision of the reflecting telescope.
Descripción:
The reflecting telescope reflected light, instead of warping it. This allowed for more accurate conclusions to be made on positions and colors of astronomical objects; and with John Hadley's improvements, the reflecting telescope became the most trusted and only commercially used telescope in the world.
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fecha:
1 ene 1718 año
Ahora mismo
~ 306 years ago