El «Regimiento de la declinaçion del sol» del virrey D. Antonio de Mendoza

You re growing up and your body is changing. If you re a girl, you re likely experiencing the start of menstruation, your breasts are making themselves known, and you re noticing new hair that you might want to be rid of. If you re a boy, you may be experiencing something strange as you sleep, or sweating a lot and not wanting to shower. This book is a complete guide to the terrible and marvelous world of puberty."

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...

La enseñanza de la Historia Nacional en nuestro país se ha caracterizado siempre por hacernos ver a sus protagonistas como frías estatuas de bronce o piedra, seres inexpresivos e inhumanos que nos observan con Mirada ausente desde su pedestal. Es por ello que hemos decidido pedir a los propios protagonistas de la Independencia que nos cuenten vida y obra con aciertos y errores incluidos, desde que nacieron y hasta el momento previo a su muerte. Esto con el único propósito de quitarle a la historia patria esa fría y aburrida solemnidad con la que también se suelen presentar los...

Enter the world of bug builders! Bugs can build structures that are as complex as the ones that we build! Readers will learn about the amazing things tiny creatures such as silkworms and beetles can build in this inviting, Spanish-translated nonfiction title that features detailed photos, riveting facts, informational text, a glossary for vocabulary improvement, and a list of useful websites.