Explora el mundo de las estrellas y planetas: sistemas estelares, descubrimientos recientes, y cometas y asteroides. [Explores the world of stars and planets: star systems, recent discoveries, and comets and asteroids.].
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Las Estrellas: Brilla, Brilla, Estrellita Y Estrella… As three children look up in the night sky at the stars, three stars look down at the earth at the children. The stars twinkle and the children twirl as they make wishes on each other.
Dc Power System Design For Telecommunications Straightforward, systematic approach for designing reliable dc power systems for telecommunications Here is a must-have resource for anyone responsible for designing, installing, and maintaining telecommunications systems. The text explains how to design direct current (dc) power systems that operate at nominal voltages of 24 and 48 volts dc, use lead-acid…
Los Planetas (planets) Earth is a planet, moving around the sun. But Earth is not the only planet in our solar system! It is one of eight planets, many moons, and other objects that orbit our sun. The planets have much in common, but they have many differences, too. In this Spanish-translated book,…
Astrizia Y Los Asteroides Breve cuento infantil ilustrado a todo color donde se narran las aventuras de Viqui, Petro y Roque,tres pequeños asteroides que, por accidente, saltan un día del cinturón de asteroides situado entre Marte y Júpiter, y perdidos recorren todos los planetas del sistema solar, buscados entre tanto por la Policía Espacial.…
