Download or read book The Book of Knowledge of Ingenious Mechanical Devices written by P. Hill and published by Springer. This book was released on 1975-01-14 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: To judge by the dictum of al-Ja~i?: (d. A.D. 869), 'Wisdom has descended upon these three: the brain of the Byzantine, the hands of the Chinese, and the tongue of the Arab', in the great age of the