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The Book of Ingenious Devices was a large, illustrated work on mechanical devices, including automata, published in the 9th century by three brothers. The work was completed at the Bayt al-Hikma—House of Wisdom—in Baghdad under the Abbasid Caliphate. Translated into English in 1979, the book describes approximately 100 devices and how to use them. Although some of the devices were inspired by earlier Greek inventions, many were newly conceived, including what unusual contraptions? Discuss
Source: The Free Dictionary