Orrery

Orrery is a mechanical toy which exhibits, by an arrangement of rods, balls, and toothed wheels, the sun, the planets, and their moons, all performing their respective motions; so named after the Earl of Orrery, for whom Charles Boyle made the first one in 1715.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Orpheus * Orsini, Felice
Orleans, Dukes of
Orloff
Orme, Robert
Ormolu
Ormonde, James Butler, Duke of
Ormuz
Ormuzd
Orontes
Orosius, Paulus
Orpheus
Orrery
Orsini, Felice
Orsova
Orviëto
Oscans
Oscar I.
Oscott
O'Shaughnessy, Arthur
Osiander, Andreas
Osiris
Osmanlis

Nearby

Orrery in Brewer’s Dictionary of Phrase & Fable