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Hellenistic Astronomy – Unexpected traces of a lost science Posted: 10 Nov 2010 08:15 PM PST Hellenistic Astronomy – Unexpected traces of a lost science The book tells the history and major contributions of Hellenistic astronomy and science between the 4th and 1st century BC, from Eudoxus of Cnidus to Hipparchus.Of all research by Hellenistic astronomers, only two minor works survived. Very little is known about this age, after which all their activity ended. Only through very recent investigations on ancient artifacts like the so called Antikythera mechanism, and the analysis of classical literary records, we may try to better understand this fascinating civilization.The book covers the library of Alexandria, Erathosthenes’ measurement of the Earth’s circumference, the retrograde motion of the planets, heliocentrism, the Antikythera mechanism, Hipparchus and the precession of the equinoxes, computing tools and techniques, the loss of Hellenistic knowledge, and more.The author, Mauro Arpino, is an astronomy and science educator and works for the Planetarium of Milan, Italy. Hellenistic Astronomy collects some of the material he covers in his planetarium lessons for schools.
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Posted: 10 Nov 2010 08:11 PM PST The Growling Cory Anderson is an angry young man. Losing his girl friend to a deadbeat like Malcolm hasnt helped. And beating his exs new beau to a bloody pulp has made matters even worse. Thrown out of the apartment and facing the long lonely trip to the ground floor Cory must come to terms with some harsh realities. And the thing in the stairway
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Posted: 10 Nov 2010 07:57 PM PST Rockets, mice and men Meet a white mouse that was a pioneer of the space program and learn the little know story of the contribution that a group of rocket enthusiasts made to space research. This is the story of a dream and how the dream was realised at the Kennedy Space Centre together with details of the Apollo space program and how it managed to land men on the Moon and bring them home safely.
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