Mitología Mesoamericana: Quetzalcóatl (Mesoamerican Mythology: Quetzalcoatl)

Defines pulleys, explains their functions, and suggests simple experiments to demonstrate how they work.

For those who enjoy unconventional solutions, the author offers a wide range of all-time paradoxes that defy your deductive and calculation skills with impossible logical truths, and helps you to learn how to overcome the traps of false truths.

Read Along or Enhanced eBook: Travel to the 22nd century in this captivating, Spanish-translated nonfiction title that allows readers to discover the future of space. Elementary readers will be fascinated with the possibilities that may await human life in the future. Readers will discover the technology that may be used to one day allow humans to live on another planet, new worlds, alien life, and artificial intelligence. Featuring vibrant photos, images, informational text, a glossary of terms, and a list of helpful websites for more explorations, children will be excited and enthralled as...

Rosalinde tiene un agujero en los calcetines. Rosalinde tiene una venda en la rodilla... Las personas que la rodean se fijan en casi todas las cosas de Rosalinde, menos en sus ideas. Sólo su abuelo conoce las ideas que tiene en la cabeza.