Telescopes: A Very Short Introduction
From Our Blog
The ancient Greek philosophers believed that the Sun, Moon, planets, and stars were mathematically perfect orbs, made from unearthly materials. These bodies were believed to move on perfectly symmetric celestial spheres, through which a backdrop of fixed stars could be seen, rotating majestically every 24 hours. At the centre was the motionless Earth. For the Greeks, the power of reason was more important than observation.
Posted on December 22, 2016
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