Finalista Premio Planeta Roy Arias, recién nacido, es encontrado entre las ruinas de Córdoba y adoptado por un caballero templario que lo entrega a la abadesa de un convento para que lo críe. Roy estudia en Salamanca y es admitido como aprendiz del astrónomo del rey Alfonso X, que les ordena ir a Persia en busca del sabio Nasir. En su viaje, junto con su maestro ben Fazzam, el fiel esclavo Batani y Manfred, capitán de la guardia del rey, se encontrarán con los mercaderes Polo, convivirán con tribus de las estepas, sufrirán emboscadas, conocerán el Imperio mongol e intimarán con mujeres extraordinarias. Una mezcla trepidante de aventuras, amor, intrigas nobiliarias, astrología, búsqueda de conocimientos y misterios.

"College Physics is written for a one-year course in introductory physics."--Preface.

Jesuits established a large number of astronomical, geophysical and meteorological observatories during the 17th and 18th centuries and again during the 19th and 20th centuries throughout the world. The history of these observatories has never been published in a complete form. Many early European astronomical observatories were established in Jesuit colleges. During the 17th and 18th centuries Jesuits were the first western scientists to enter into contact with China and India. It was through them that western astronomy was first introduced in these countries. They made early astronomical observations in India and China and they directed for 150 years the Imperial Observatory of Beijing. In the 19th and 20th centuries a new set of observatories were established. Besides astronomy these now included meteorology and geophysics. Jesuits established some of the earliest observatories in Africa, South America and the Far East. Jesuit observatories constitute an often forgotten chapter of the history of these sciences.

A beautiful gift edition of Figures & Figurations: the collaboration between the Nobel Prize laureate Octavio Paz and his wife of thirty years, the artist Marie José Paz.