1300 AD written by Abu’l Qasim reports that the ratio of quartz to "frit-glass" to white clay is 10:1:1.[116] This type of pottery has also been referred to as "stonepaste" and "faience" among other names.[117] A 9th-century corpus of "proto-stonepaste" from Baghdad has "relict glass fragments" in its fabric.[118] Mercury clock: A detailed account of technology in Islamic Spain was compiled under Alfonso X of Castile between 1276 and 1279, which included a compartmented mercury clock, which was influential up until the 17th century.[119] It was described in the Libros del saber de Astronomia, a Spanish work from 1277 consisting of translations and paraphrases of Arabic works.[120] Mariotte's bottle: The Libros del saber de Astronomia describes a water clock which employs the principle of Mariotte's bottle.[119] Metabolism: Ibn al-Nafees is the first scientist in history to describe metabolism.[121] Naker: Arabic nakers were the direct ancestors of most timpani, brought to 13th-century Continental Europe by Crusaders and Saracens.[122] Tusi couple: Nasir al-Din al-Tusi was the first astronomer to attempt a solution which would provide for latitudinal motion without introducing a longitudinal component.