Explores empires of medieval west Africa.

Illuminating the Darkness critically addresses the issue of racial discrimination and colour prejudice in religious history. Tackling common misconceptions, the author seeks to elevate the status of blacks and North Africans in Islam. The book is divided into two sections: Part l of the book explores the concept of race, 'blackness', slavery, interracial marriage and racism in Islam in the light of the Qur'an, Hadith and early historical sources. Part ll of the book consists of a compilation of short biographies of noble black and North African Muslim men and women in Islamic history including Prophets, Companions of the Prophet and more recent historical figures. Following in the tradition of revered scholars of Islam such as al-Jahiz, Ibn al-Jawzi and al-Suyuti who wrote about this topic, Illuminating the Darkness is structured according to a similar monographic arrangement.

Provides an introduction to the modeling, analysis, design, measurement and real-world applications of vibrations, with online interactive graphics.

In the Middle Ages the astrolabe was the best known and most widely used astronomical instrument both in the Islamic world and in the West. The oldest extant description of the construction of this instrument was written by the well-known Arabic astronomer al-Farghani (Baghdad, ca. 856). His treatise is especially valuable because of the tables it contains to enable an artificer to draw the various circles and arcs on the instrument. The Arabic text of this work, including the tables, is presented here for the first time in a critical edition, accompanied by an English translation and a commentary reproducing al-Farghani's reasoning in modern mathematical notation.