La búsqueda de la velocidad: Los vehículos (The Quest for Speed: Vehicles) (Spanish Version)

The need for speed is the motivating factor in this engaging, Spanish book. Readers learn the history of travel from the very slow to the supersonic and beyond, including everything in between. They learn and discover the factors that influence motion for all types of vehicles: land, air, and water alike. They also learn different ways to measure speed and read about energy uses for different vehicles. With greater speed comes greater risk. Readers learn how engineers are always seeking new and better ways to keep people safe as they travel faster and go farther. This 6-Pack includes six...

Readers won't have to disassemble their favorite toys to discover what makes them work. This book explores electric, magnetic, and motion-powered toys from design to function. It introduces readers to the six simple machines and explains how they use force and motion to do work. Not every toy is a technological marvel. Readers learn about time-honored favorites including the rocking horse, Slinky, and rattles.

This Spanish-translated book will be a hit with both thrill seekers and with those who prefer to stay safely on the ground. After an introduction to Newton's three laws of motion, readers learn the mechanics of various amusement park rides including roller coasters, Ferris wheels, merry-go-rounds, and gravity rides. They learn how to measure motion, and how kinetic and potential energy apply to their favorite rides. This 6-Pack includes six copies of this title and a lesson plan.

Ésta es la historia de Abul Qasim, el médico del califa Abderrahmán III. Abul operaba cataratas, hernias y bocios; hacía traqueotomías, trepanaciones, amputaciones y, incluso, intervenía cólicos misereres.

Describes the U.S. Army Rangers, including their missions, vehicles, weapons, equipment, and duties. Written in English and Spanish.

«Todos creemos conocer a los que amamos. Pero lo que amamos resulta ser una mala traducción, una traducción hecha por nosotros mismos de un idioma que apenas dominamos.» Pearlie Cook inicia el relato de su vida con una sinuosa y devastadora exploración del misterio que encierra toda relación íntima. Estamos en 1953, y la joven Pearlie vive en San Francisco, donde cuida celosamente de su hijo y de su marido, Holland, de salud delicada desde que volvió de la guerra. Para protegerlo de sobresaltos innecesarios, Pearlie suaviza el sonido de los timbres de la puerta y el teléfono, y...

Rafael Alberti fue uno de los poetas españoles más grandes del siglo xx. Y también un extraordinario poeta para niños, a los que atraía por su personalidad y su amable aspecto de abuelo y mago. Sus poesías, muchas de ellas recogidas en esta espléndida ant