Experimentos sorprendentes con la luz

Con el título común «Elementos de retórica» se reúnen las dos obras fundamentales que Giambattista Vico consagró a esta cuestión: la lección inaugural del curso académico de 1708 de la Universidad de Nápoles, publicada más tarde como «De nostri temporis studiorum ratione», y el manual de la materia, que Vico explicó en Nápoles entre 1698 y 1741, las «Institutiones oratoriae», y no llegó a editar en vida. Ambas constituyen un capítulo importante de la historia del humanismo y dan testimonio de la conexión entre éste y la retórica. Como ya advirtiera Hans-Georg Gadamer,...

Reptiles y anfibios is one book in the Spanish-language Gran Atlas de la Ciencia series that covers today's most popular science topics, from digital TV to microchips to touchscreens and beyond. Perennial subjects in earth science, life science, and physical science are all explored in detail. Amazing graphics--more than 1,000 per title--combined with concise summaries help students understand complex subjects. Correlated to the science curriculum in grades 5-9, each title also contains a glossary with full definitions for vocabulary.

It was September 14, 1814, and America and Great Britain were at war. Frances Scott Key watched from the deck of a British ship, where he was being held captive, as cannons exploded around them. After 25 hours, the fighting ceased and Key peered through the clearing smoke, looking for some sign as to the outcome of the battle. Was the American flag still flying? His wartime experience inspired Key to write a poem, which was later set to music and became America’s national anthem. This book tells the story of the inspiration behind our national anthem, which helped transform the flag into a...

Divi rtete junto a Juan y Mar a contestando las perspicaces preguntas del sombrero. En este ingenioso libro los acertijos muestran c mo los cient ficos buscan todas las posibles respuestas a un problema y comparan una respuesta con la informaci n que ya tienen, c mo eliminan lo que no encaja en una situaci n planteada y, as , llegan a la respuesta correcta. quieres hacer trucos con sombreros?