Sentences with 'motions'

Example sentences and phrases with the word motions and other words derived from it.

« Halley's interest in the motions in space did not end with comets. In 1718 he revealed that stars also move, a conclusion he reached after finding that Arthur, Sirius and Procyon had changed places since the time of the Greeks. »
« While ancient authors wrote about astronomy, for example, they did not adequately explain the observed motions of the stars and planets. »
« The classic example of the latter was to take the idea that the Earth is the centre of the universe as a fact, and then try to force the observed motions of celestial bodies to make sense through elaborate explanations. »
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