Desafíos matemáticos

Sesenta autores, desde catedráticos de universidad hasta estudiantes de Secundaria y Bachillerato, nos presentan los cuarenta desafíos que la Real Sociedad Matemática Española propuso con motivo de su centenario.Son cuarenta estimulantes retos que avivan el ingenio. Enfrentándose a ellos, el lector se sentirá un auténtico investigador matemático.Pero no hay que asustarse. No es necesario saber muchas matemáticas. La herramienta esencial para resolver los desafíos es pensar ordenadamente.

We have summarized the essential of the following texts: From POLITICAL ESSAYS, "The crisis of the Welfare State and the depletion of the utopian energies", from THEORY AND PRAXIS, "The classsical doctrine of politics and its relationships with philosophy", a small fragment of "Science and technique as ideology and the article "Modernity, an uncomplete project".

Es una increible aventura que te transportara al Antiguo Egipto, una de las civilizaciones mas misteriosas que han existido en la Historia. Laila, Alex y Guiomar te ayudaran a descubrir algunos enigmas de ese mundo fabuloso. Quieres ir con ellos ? Te gustaria conocer el poder magico de los antiguos egipcios ?

In June of 1870, Charles Dickens died before finishing his last novel, The Mystery of Edwin Drood. The ending of that novel would become one of the great literary enigmas of all time. In 2018 the filmmaker Hugo Almagro agrees to write a script about The Mystery of Edwin Drood.

A lot of what many people know about the native groups in the northeastern part of North America comes from colonial history. The Wampanoag met the Puritans as they made their home at Plymouth. The Powhatan group of the Algonquin people had a large role in the history of the Jamestown Settlement in Virginia. However, the history of the native groups living in modern New York, Massachusetts, Ohio, Pennsylvania, Maine, and northern Virginia began long before European settlement! Readers meet several individual groups of native peoples and explore the distinguishing features of northeastern...