[2] In 2008, he studied for the first time in depth The Book of Secrets (Kitab al-Asrar) by the 1000 CE Arabic engineer and scientist Ibn Khalaf al-Muradi.

The complete and unique study of all The Book of Secrets, all his machines and the pages are shown in the Museum of Islamic Art in Doha.

Mario Taddei is considered today one of the greatest international experts of the genius of Vinci: his exhibitions and installations have been over the years presented with great success both in Italy and abroad (Germany, USA, Canada, Mexico, Brazil, Qatar, Japan)."

[10] Studies on the subject mention that manuscripts relating to Leonardo’s idea for the robot are in the Codex Atlanticus, specifically folio 579r.

The Model is shown in exhibition around the world and the work of research is published in the "Leonardo da Vinci's robots" book.