What is Centering

A great number of mosques, madrassas and hospitals compete with the enormous mausolea of the two gigantic historical necropolis of Cairo. The extraordinary Cairene domes have been the subject of really interesting studies. From the early historiography investigations to the most recent contributions, some of them focused on finding an explanation to the stability of these constructions of extraordinary slenderness. However, the remarkable stereotomy of these constructions has only been mentioned in a few of these publications. The art of stonecutting requires geometric knowledge which, although it starts with the professional practice at the workshop associated to the job, reaches extraordinary complexity and abstraction levels. In Islam, the passion for geometry finds in the masonry art a field where it can be developed without limits.