Sidereus Nuncius, or The Sidereal Messenger by Galileo GalileiThis fine translation is a god-send. . . . Surely you want to read what Galileo wrote. If so buy this book. Van Heldens introduction is scholarly; no one knows more about Galileos telescope; the translation is superb; Van Heldens review of the reception of the Sidereal Messenger is profound; the bibliography is extensive. What more can I say?—David W. Hughes, The Observatory
[Sidereus nunclus] has never before been made available in its entirety in a continuous form, with full notes and comment. The introduction, translation and notes by Van Helden are a splendid example of the best scholarship and fullest accessibility. . . . we can now truly get to grips with the phenomenon of Galileo and what his life and work should mean to us today.—Robert Temple, Nature
Galileo Galilei: Biography, Inventions & Other Facts
By the time Galileo took eye to eyepiece in Padua Italy in , he had already begun a life-long quest to understand the natural world around him. Over the next quarter century Galileo made numerous investigations into the mechanics of motion and weight. By the year Galileo had spent nearly two decades ensconced as a lecturer on mathematics and physical sciences at the University of Padua. He is said to have described this period as one of the most personally fulfilling years of his life. But the quiet joys of teaching and raising a family of three children were poised for change. And that change came in the form of a fateful letter describing a spyglass demonstrated by a Dutchman visiting Venice located some 40 kms west of the university.
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Publications overview Annual reports Newsletters Email discussion lists Careers. - In the spring of , an unknown professor of mathematics at the University of Padua first held a strange object, formed of a short cardboard tube with two lenses fixed at the end.
Born in , Italian astronomer Galileo Galilei's observations of our solar system and the Milky Way have revolutionized our understanding of our place in the Universe. Galileo sparked the birth of modern astronomy with his observations of the Moon, phases of Venus, moons around Jupiter, sunspots, and the news that seemingly countless individual stars make up the Milky Way Galaxy. If Galileo were around today, he would surely be amazed at NASA's exploration of our solar system and beyond. After learning of the newly invented "spyglass," a device that made far objects appear closer, Galileo soon figured out how it worked and built his own, improved version. In , using this early version of the telescope, Galileo became the first person to record observations of the sky made with the help of a telescope. He soon made his first astronomical discovery. At the time, most scientists believed that the Moon was a smooth sphere, but Galileo discovered that the Moon has mountains, pits, and other features, just like the Earth.