Kalli nassi da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar nassi: Passage: Wannan bayanin tauraron dan adam ne ko orrery. Pappus na Alexandria ya bayyana cewa Archimedes ya rubuta rubutun (yanzu ya ɓace) akan gina waɗannan hanyoyin da ake kira On Sphere-Making. Bincike na zamani a wannan yanki ya mai da hankali kan tsarin Antikythera, wani na'urar da aka gina c. 100 BC wanda wataƙila an tsara shi don wannan dalili. Gina irin waɗannan hanyoyin zai buƙaci ƙwarewar ilimi game da bambancin bambancin. An taɓa tunanin wannan ya kasance bayan kewayon fasahar da ake da ita a zamanin d ̄ a, amma ganowar tsarin Antikythera a 1902 ya tabbatar da cewa na'urorin irin wannan an san su ga tsoffin Helenawa. Tambaya: Wane irin tsari ne aka gina don yin sararin samaniya?
Ƙasar Antikythera