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The Eidophusikon (Greek: Ειδωφυσικον) was a piece of art, no longer extant, created by 18th century English painter Philip James de Loutherbourg. It opened in Leicester Square in February 1781.
Described by the media of his day as "Moving Pictures, representing Phenomena of Nature", the Eidophusikon can be considered an early form of movie making. The effect was achieved by mirrors and pulleys.
A small exhibition centered on his Eidophusikon can currently be seen at The Huntington Library.
A full Eidophusikon, described also as a "small, mechanical theatre", is currently active (June to November 2014) at the exhibition "Underworlds" (Unterwelten) in Dormund, Germany.