Sor Juana Inés de la Cruz y el teatro novohispano

LA ALIANZA DE TANIS es el primero de una saga de tres libros. El segundo se llamará EL SIMPLE BESO DE UN ÁNGEL, que continúa la historia ocho años después del primero. La lucha entre LOS REMENDORES y el Cardenal se pone en su punto más álgido. El tercer libro, JESÚS Y NEXUS, transcurre veintidós años después a partir del segundo libro . El mundo que conocemos ha cambiado y los niños, ahora adultos, se enfrentan a una sucesión de problemas que amenazarán sus vidas. Con este último se dará fin a esta trilogía.

When winter hits, many people in colder climates spend most of their time indoors. But what do wild animals do? Some animals spend winters hibernating. Beginning readers will learn what hibernation is, why some animals hibernate and others don't, and how hibernating animals prepare for their long sleep. Full-color photographs grab readers' attention and allow them to draw connections to the narrative. Readers will love learning about this mysterious, restful time in some animals' lives.

What causes sound? How does sound travel? Sound begins when matter vibrates. Without this vibration sound could not move and nothing would make any noise. Starting with tiny molecules, this book explains the main concepts of sound and furthers understanding through a series of easy-to-do experiments that will appeal to readers of all ages.

Imagine traveling at half the speed of a jet plane without ever leaving the ground! Students will discover the technology that makes such speeds possible, from special tracks and safety precautions to aerodynamically designed trains. What are the limits to the speed of trains? What imposes those limits? Students also will read about the future of passenger train travel, from flying trains to trains that use huge magnets to levitate inches or centimeters off the track. Some trains safely reach speeds of more than 200 mph!