A Philosopher Giving a Lecture on the Orrery ( mechanical model of the Solar System( 1768 ) by Pether, William(1731-1795 )

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Keywords: astronomia, astronomy, conferenza, demostation, eclipse, enlightenment, filosofo, giving, illuminism, illuminismo, lecture, lesson, lezione, meccanico, mechanical, mezzatinta, mezzotint, model, modello, orrery, pether, philosopher, pianeti, planets, professore, science, scienza, sistema, solar, solare, spiegazione, system, teacher, william