Desastres ecológicos: Los derrames de petróleo y el medioambiente (Sinister Sludge: Oil Spills and the Environment)

From art and architecture to politics, philosophy, and mathematics, "western civilization" owes a great deal to the achievements of ancient Greece, but what do we really know about this long-gone civilization? How did geography influence the politics of the Greek city-states? What's the difference between an agora and an acropolis? This book takes readers several thousand years into the past, when independent city-states ruled the Mediterranean Sea, to find the answers. Full-color photographs and maps, accompanied by accessible text, introduce readers to the many contributions the ancient...

Los cuatro volúmenes de las Obras completas que ha dirigido Miguel García Posada recogen la edición más rigurosa de los escritos de Lorca. Aparte de las obras que él mismo dio a imprenta, entre las que destacan Romancero gitano, Poeta en Nueva York, Bodas de sangre o La casa de Bernarda Alba, a su temprana muerte dejó un sinnúmero de poemas juveniles, textos esbozados, inconclusos o sin revisar que ven la luz por vez primera en esta edición.

Imagine traveling at half the speed of a jet plane without ever leaving the ground! Students will discover the technology that makes such speeds possible, from special tracks and safety precautions to aerodynamically designed trains. What are the limits to the speed of trains? What imposes those limits? Students also will read about the future of passenger train travel, from flying trains to trains that use huge magnets to levitate inches or centimeters off the track. Some trains safely reach speeds of more than 200 mph!

Provides an introduction to the concept of patterns, using examples from the coats and feathers of animals as well as the designs some make.

«En la soledad, el abismo» recopila en versos todo lo que no puede recopilarse en abrazos, esa ausencia indescriptible y el doloroso miedo de la fragilidad humana. Cada poema rasga el verso para encontrar la belleza en la soledad cotidiana y en la amargura de una soledad que sobrepasa lo inalcanzable. Cada soledad es un universo. Espero que puedas encontrar la tuya en el mío y, así, juntas, nuestras soledades bailarán su vals acompasadas.