Cómo funcionan los ecosistemas

«Me gustó aquel sitio por su excelente café, el agua pura, las tazas y los vasos limpios, la dulzura de Qaránfula, la grave dignidad de los ancianos, la vitalidad de los jóvenes y la belleza de la chica.»Así describe el narrador (acaso el mismo autor) el ambiente y los personajes que frecuentan el Café Karnak, cálido punto de unión entre el pasado y el presente. Cuandno sin previo aviso tres jóvenes dejan de acudir al café, Qaránfula, su dueña, una bella mujer madura que fue bailarina, empieza a investigar. Descubrirá sus historias entrelazadas y la cara más dura de la...

Nature is not always kind. Natural disasters like earthquakes and storms can wipe out cities. Entire cultures and their histories are at risk of being lost. When disaster strikes, some people work to save cultural items. They preserve culture for the future! Created in collaboration with the Smithsonian Institution, this Smithsonian Informational Text builds students' reading skills while engaging their curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides students through every step of the engineering design process and is perfect for...

En la Biblia para niños – Historias de Jesús edición especial bilingüe todo relato susurra su nombre. La misma cuenta la historia que subyace detrás de todas las otras historias de la Biblia.

For ages, the idea of machines that think and act on their own has gripped scientists, thinkers, and the general public. This book explores the history of artificial intelligence (A.I.), and how science fiction is quickly becoming science fact. It examines the technologies involved in A.I. and its inevitable effects on work, life, health, and many other aspects of human society. Rooted in history and science, this book provides an inside look at a topic that captivates engineers, scientists, and dreamers, but also raises important ethical issues and challenges how we see ourselves and our...