Experimentos sorprendentes con la luz

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...

Among the multitude of dictionaries available on the market, this one stands out for being especially designed for students and learners of English. This dictionary is the ideal learning tool for students at the intermediate level who wish to expand upon their knowledge of the English language. To this end, this volume offers over 40,000 terms taken from everyday language, each with its phonetic transcription to make pronunciation easier. It also features examples of grammatical usage, numerous informative charts (with both grammatical and cultural information), helpful illustrations, and...

What is a responsibility? How can you be responsible for yourself? Read this book to learn about how and why to behave responsibly.

What does it take to build an amazing sandcastle? The answer is: more than you think! Take students on a fun exploration of the properties of sand and factors that influence sandcastle construction such as moisture and sunlight. Created in collaboration with the Smithsonian Institution, this STEAM book will ignite a curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that is perfect for makerspaces and that guides students step-by-step through the engineering design process. Make STEAM career connections with career advice from actual Smithsonian...