Cultural Conservation: At Spain’s only remaining Islamic university, analytical techniques distinguish original pigments from those added in the subsequent six centuries In 1349, during the height of Spain’s last Islamic era, scholars built a university called Madrasah Yusufiyya of Granada, and decorated its stucco-and-wooden interior with an abundance of paintings. The university operated for only… Seguir Leyendo How Old Are Your Blues?
Curvy Crystals WHEN NATURE CREATES exquisite swirls in seashells, the assembly of inorganic ions into appealing shapes is guided by helper proteins or organic molecules. Surprisingly similar curvy crystals have been made in a beaker from barium carbonate and silica, but without the aid of scaffold or support. Now, researchers in Spain and Australia are… Seguir Leyendo Curvy Crystals