Tigre dientes de sable (Smilodon)

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...

A retelling, in graphic novel form, of the myth of Thor and his brother Loki, who visit a land of giants in order to resolve their argument about brains vs. brawn.

Luna deberá prepararse para la Competencia Intercontinental de Patinaje junto con sus amigos del Jam & Roller. Pero, para cumplir sus sueños, tendrá que resolver problemas escolares, sentimientos complicados y algunos malos entendidos... Luna está más confundida que nunca, dividida entre la escuela y la pista, entre Simón y Matteo. ¿Logrará escuchar a su corazón, pasar el año y triunfar en la competencia?

Readers find out what it's like for astronauts to eat, sleep, and work on a manned space flight in this adventurous, Spanish-translated nonfiction title. Children will discover what it's like to be weightless in zero gravity, how Mission control helps keep astronauts safe, and what astronauts do during their free time through vivid photographs, interesting, informative text, and stimulating facts.