Gibraltar

This book captures the most stunning studies, the difficulties, the dangers, and the experiences during a 10-year period of travel and expeditions. Author Juan Jesus Vallejo journeys across five continents, giving us a glimpse into the pyramids in Peru that are older than the Egyptian pyramids; the first human temples with more than 10,000 years of history, discovered in the dusty fields of Kurdistan; and the largest and most puzzling painted rocks on the planet, in nearly unexplored areas of the Sahara. An endless stream of riddles, anecdotes, and facts, this book demonstrates that the world ...

Breve historia de la carrera espacial es un repaso histórico de la astronáutica y de los múltiples esfuerzos del ser humano por conocer qué hay más allá de la Tierra. Desde la observación de los astros y el posterior estudio de las leyes físicas que rigen el Universo, hasta las exploraciones espaciales recientes. El libro repasa continuamente los aportes científicos de Tsiolkovski, Oberth, Goddard, Einstein, Hohmann e incluso describe cómo este último encontró un camino sencillo para viajar a otros planetas antes de que se inventase la nave espacial. Aparte de estos conceptos, el...

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...

Se analizan las distintas opciones vitales ofrecidas a las mujeres sevillanas de fines de la Edad Media e inicios de la Modernidad. Un mundo diverso y complejo formado por una serie de posibilidades que pasan por el matrimonio, las relaciones extramaritales, las modalidades de la religiosidad laica y el ingreso en una orden monástica o conventual.