Guardacostas de la Guardia Costera de EE. UU.

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

Describes the U.S. Air Force Thunderbirds, including their planes, the maneuvers at their air shows, and team member duties. Written in English and Spanish.

Provides an overview of the design, uses, weapons, and equipment of U.S. Air Force bombers. Written in English and Spanish.

es una aventura apasionante. Papa Mongo y su querido mono Yayi viajan por Africa para encontrar una maravillosa medicina para Ekimbe, su nieto, que esta enfermo en Madrid. ¿Quieres conocer lugares extraordinarios? ¿Te gustan los fantasticos animales de la selva? ¿Y vivir aventuras increibles? Con este libro tienes la oportunidad de descubrir una parte del corazon del continente africano.

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!

Did you know that gases have no size or shape? Gases can become liquids when they get cold. Discover more interesting facts in Gases, part of the States of Matter series of EYEDISCOVER books.

Rusbashov, miembro de la vieja guardia bolchevique y héroe de la Revolución Soviética, ha sido encarcelado acusado de traición al gobiernode Moscú. Es incitado a autoinculparse de una serie de delitos y traiciones que no ha cometido, pero termina por confesar a fin de salvar la Revolución. Esta obra cumbre de la literatura política nos ofrece un testimonio excepcional de la angustia que sufrieron cientos de antiguos miembros del Partido que desaparecieron, fueron encarcelados y juzgados o llegaron a autoinmolarse para salvarlo