Los huesos de Descartes

Discover Dinosaurs Spanish Edition. Dinosaurs were reptiles that lived millions of years ago. It was a long time before there were any people on the earth. Scientists have looked at dinosaur bones and found out many things about what they were like. Nobody knows why the dinosaurs disappeared. People have made pictures to show what they might have looked like. What do we know about dinosaurs?

This second volume of Obras de teatro infantil presents comedies of love, fear, adventure and absurdity to be read and performed by children both at school and at home.

Más de 1000 palabras básicas ilustradas y organizadas por temas, para aprender español con actividades para practicar el vocabulario que se presenta. Consta de 22 unidades. Al final del libro hay un solucionario, asi como un glosario de las palabras ilustradas traducidas a 5 idiomas.

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...