Wall clock,

Heart-shaped, with gears in front, in steampunk art form. A clock or a timepiece is a device used to measure and indicate time. It is usually used to measure time intervals shorter than a day. The first known serrated clock was invented by the great mathematician, physicist and engineer Archimedes in the 3rd century BC. He created his astronomical clock which was also a cuckoo clock with birds singing and moving every hour. Another Greek clock that was probably made during the reign of Alexander the Great was in Gaza, funded by him. It was probably a Meteorological Observatory, a building that shows the celestial phenomena and the time. Steampunk is a subgenre of science fiction that incorporates retrofuturistic technology and aesthetics inspired by 19th-century industrial steam-powered machinery. Steampunk works are often set in an alternative history of the Victorian era or the American "Wild West", where steam power remains in mainstream use, or in a fantasy world that similarly employs steam power. Steampunk most recognizably features anachronistic technologies or retrofuturistic inventions may include fictional machines like those found in the works of H. G. Wells and Jules Verne.

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