El gran libro de las matemáticas del Ogro feroz

People today refer to the Midwestern and prairie states as flyover country. During the Civil War, crossing those areas was the biggest obstacle in uniting the East and West Coasts of our divided nation. An act of Congress in 1862 authorized the Central Pacific and the Union Pacific railroad companies to build a railroad that would link the coasts. Seven years later, on May 10, 1869, an overwhelmingly immigrant labor force completed the task when a rail line was join in Promontory, Utah. The states had become united at last.

Explains, in simple terms, the reasons for skin color, how it is determined by heredity, and how various environmental factors affect it.

In life there are lots of things that come and go, transform, or get left behind. It happens to everything . . . except this. This book deals with life changes and the passage of time with a great deal of sensitivity. To reinforce the message, each scene includes a page with special paper that invites us to witness the transformation.

El mundo de los libros es un mundo casi de otro mundo. Un mundo propio, mundo único, un mundo sostenido por el tenue hilo de una inspiración y un sujeto inspirado. Pero “el libro” posee en su interior big bangs semánticos que no paran de generar universos por doquier. Universos donde viajar, donde aprender, donde disfrutar y donde perderse. En esta breve obra hablaremos en primer lugar del libro. Qué es, cómo se concibe y, sobre todo, como es percibido por doctos e indoctos. Luego pasaremos a examinar de cerca a aquellos que aman tanto los libros que sufren una enfermedad de afecto...