De visita en el correo (A Trip to the Post Office)

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

Los testimonios no sólo es una obra fundamental en el mundo poético y revolucionario de Roque Dalton; además es una de sus obras más recomendables para aquellos que entran por primera vez en su mundo y pretenden acercarse al conocimiento si no a la experiencia plena del mundo del intelectual comprometido, del rebelde marginal; del mundo donde ética y estética, para bien o para mal, alcanzaron uno de sus grados máximos de comunión.

Take a look inside this book and you'll discover four delightful jigsaws specially designed for tiny hands, with each jigsaw piece that has touchy-feely textures that will help to develop sensory awareness and the concept of matching.

Describes the U.S. Navy's Blue Angels, including their planes, the formation and maneuvers of their air shows, and team member duties. Written in English and Spanish.