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John Hadley is today remembered as scientist who was the first who managed to significantly evolve Isaac Newton designs of reflecting telescope by the introduction of precision aspheric and parabolic speculum metal mirrors.
Hans Lippershey is today remembered as the person who started the modern history of telescopes. Here you can find out more about his life, and events that transpired when he tried to unveil his discovery to the world.
Johannes Kepler is without a doubt one of the most important scientists that contributed to the rise of Enlightenment, a scientific movement that significantly impacted the development of Renaissance Europe. Many of his most important discoveries happened because of his involvement with telescopes, which were introduced to them by none other than Galileo Galilei.
In 1608, three inventors contacted Dutch government and asked from it permission to patent their original Telescope designs. One of those three was Jacob Metius, a famous spectacle-maker from Dutch city Alkmaar.