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Bianzhong (pronunciation ⓘ) is an ancient Chinese musical instrument consisting of a set of bronze bells, played melodically. China is the earliest country to manufacture and use musical chimes.
Video door phone indoor terminal.. Going a little further in time, we find video door phones featuring a video installation apart from the classical audio. In these cases, the intercom plate has the same structure as the previous version but features a video monitor connected to a surveillance camera that allows inspecting the person who pressed the button and part of the surrounding area.
A Yayoi period dōtaku, 3rd century. Dōtaku are Japanese bells smelted from relatively thin bronze and richly decorated. Dotaku were used for about 400 years, between the second century B.C. and the second century C.E. (corresponding to the end of the Yayoi era), and were nearly only used as decorations for rituals.
Bellfounding is the casting and tuning of large bronze bells in a foundry for use such as in churches, clock towers and public buildings, either to signify the time or an event, or as a musical carillon or chime.
Doorbell mechanism from 1884 in Andrássy Avenue, Budapest Antique mechanically operated shop doorbell on a torsion spring. William Murdoch, a Scottish inventor, installed a number of his own innovations in his house, built in Birmingham in 1817; one of these was a loud doorbell, that worked using a piped system of compressed air. [1]
Bronze weapon from the Mesara Plain, Crete. Copper came into use in the Aegean area near the end of the predynastic age of Egypt about 3500 BC. The earliest known implement is a flat celt, which was found on a Neolithic house-floor in the central court of the palace of Knossos in Crete, and is regarded as an Egyptian product.
Cannon made of bell metal at Malik-e-Maidan, Bijapur, India. Bell metal or bell bronze is an alloy used for making bells and related instruments, such as cymbals.It is a form of bronze with a higher tin content than most other bronzes, usually in approximately a 4:1 ratio of copper to tin (typically, 78% copper, 22% tin by mass).
Classical pieces using repoussage and chasing include the bronze Greek armour plates from the 3rd century BC. The Warren Cup is a Roman silver cup, and the Mildenhall Treasure , the Hoxne Hoard , the Water Newton Treasure and the Berthouville Treasure are examples of hoards of Roman silver found in England and northern France with many pieces ...