La utopía del regreso

Traducción directa del árabe al español de crónicas históricas referentes al reino de León en la Alta Edad Media contenidas en las fuentes andalusíes, realizando al mismo tiempo el análisis crítico de las mismas

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute...

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute...

Esta importante obra histórica relata desde un ángulo no convencional la historia de los pioneros de la aviación que dedicaron sus vidas, y a menudo sus fortunas, a la evolución del aeroplano tal como existe hoy en día. Ya en noviembre de 1809 Sir George Cayley publicó un ensayo magistral prácticamente inventando el avión. Permaneció olvidado durante 62 años, hasta que fue encontrado por Alphonse Pénaud. En agosto de 1871 Pénaud voló su Planoforo, el primer modelo que se asemejaba a un avión moderno. Había descubierto el secreto de la estabilidad longitudinal inherente. La...