Crisis energética: El futuro de los combustibles fósiles (Energy Crisis: The Future of Fossil Fuels)

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...

Simple text and photographs introduce the concept of "skip counting," or counting by groups of a certain number, and present items for practice.

Partiendo del principio de que “lo que no se entrena no se juega” este libro presenta un entrenamiento específico para el puesto de portero. La obra trata desde los aspectos psicológicos hasta las aptitudes, actitudes y gestos técnicos que se deben trabajar en el entrenamiento de los porteros de fútbol base. Se presentan 200 ejercicios prácticos con gráficos explicativos que se han agrupado según los aspectos que más se ejercitan en ellos: calentamiento, abdominales y estiramientos, velocidad, potenciación del salto, salidas, acciones ofensivas, lanzamientos a puerta. También se ...

Take a journey into the wild world of reptiles and amphibians! Readers will learn about crocodiles, lizards, snakes, tortoises, and salamanders. Featuring a glossary, index, colorful images and charts, intriguing facts, and clear, informative text, readers will be sure to be enthralled as they move through this engaging, Spanish-translated book.

Introduces the quarterback for the Buffalo Bills, Doug Flutie, who has also played in the Canadian Football League.