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candle clock
==Al-Jazari==
The most sophisticated candle clocks known to date, however, were those of Al-Jazari in 1206.〔 It included a dial to display the time and, for the first time, employed a bayonet fitting, a fastening mechanism still used in modern times. Donald Routledge Hill described one of al-Jazari's candle clocks as follows:
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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