Experimentos sencillos con la naturaleza

Dams change the landscape, providing reservoirs of freshwater and even producing electricity. Discover the engineering behind dams.

Readers will love this exciting biography about the famous cowgirl, Annie Oakley! Through colorful images, helpful text, an accessible glossary and index, and timeline of Annie's life, readers will discover the amazing things that Annie could do with a gun, how she earned the nickname Little Sure Shot, and how she became one of the stars of Buffalo Bill's Wild West Show! This book has been translated into Spanish.

El joven Von Neumann y la ciencia europea de principios del siglo XX. Von Neumann y las matemáticas en Gotinga. Su pensamiento científico. En los Estados Unidos. La actividad científica en los años cuarenta y cincuenta. Von Neumann y la ciencia del siglo XX.

New in the Little People, Big Dreams series, discover the life of Mohandas Gandhi, the father of India, in this true story of his life. As a young teenager in India, Gandhi led a rebellious life and went against his parents' values. But as a young man, he started to form beliefs of his own that harked back to the Hindu principles of his childhood. Gandhi began to dream of unity for all peoples and religions. Inspired by this idea, he led peaceful protests to free India from British rule and unite the country—ending violence and unfair treatment. His bravery and free-thinking made him one of ...