Abdelhamid I.sabra is emeritus professor of the history of Arabic science in Harvard's Department of the History of Science. His work in the history of science first focused on seventeenth-century Europe , with a book on theories of light form Descartes to Newton (1967,1981). He later (after 1955) turned his attention to Arabic/Islamic science, with studies, editions of primary texes, and translations. Professor Sabra, the distinguished Egyptian scholor, and professor Hogendijk co-edited the book' the Enterprise of Science in Islam'. Moreover, professor Sabra has edited the book "Kitab al-Manzir of al-Hassan Ibn al-Haytham ', the mathematician and opticist of the twelfth century, has been edited by Dr.Abdelhamid I. Sabra Kuwait, the emeritus Egyptian professor of Harvard University, and published in Kuwait.