Nuestro Mundo

¿Y si el universo no pesara nada y la materia no existiera realmente? Lo que parecería ser una duda legítima para un erudito místico de los Vedas Indios es, en cambio, un resultado embarazoso de la aplicación de la Relatividad Restringida a las observaciones obtenidas por un grupo de astrofísicos, que han medido la radiación cósmica de fondo de nuestro universo. En los albores del nuevo milenio, el satélite WMAP, más allá de proporcionarnos una medida del cosmos, nunca antes obtenida, ha creado bastantes quebraderos de cabeza respecto al concepto de universo, en el que todavía hoy ...

MODELS OF QUALITATIVE RESEARCH IN SOCIAL EDUCATION AND SOCIO CULTURAL ANIMATION - Practical applications - This book tries to combine the reflection on a concrete methodology, and its practical application to the ambience of the social field. The author wants to harmonize in this way, “knowledge” with “the knowledge to do” and invites us and to involve the heart as well as our intelligence in the work that we carry out. The book offers valuable guides and it provides hints to carry out quality research.

Alexander Graham Bell was always trying to invent new things! In this biography that has been translated into Spanish, readers will learn about Alexander's life as a teacher and inventor of such incredible inventions as the telephone, record player, and metal detector. Colorful images, supportive text, an interesting timeline, and a helpful glossary, table of contents, and index combine to give readers an inspiring look into the life of Alexander Bell.

Rhyming verse describes the good food, decorations, and stories when grandmother arrives for the annual celebration of the Mexican holiday, Day of the Dead.