Montaje mecánico en instalaciones solares fotovoltaicas

The famous civil rights leader Dr. Martin Luther King Jr. spoke out against racial and economic injustice until his death - from an assassin's bullet - in 1968. This tumultuous time in history comes to life in over 100 black-and-white illustrations that celebrate of this remarkable man.

Two plays by Juan Mayorga that exemplify the author's philosophical drama. Hamelin is set in an unnamed, corrupt city where the powerful and rich prey on the poor. Will a Pied Piper save the city's children from the "rats" that plague it? La tortuga de Darwin tells the story of Harriet, the tortoise that Charles Darwin brought back to England from the Galapagos. Since her voyage, Harriet has evolved into a turtle-woman, able to think, speak, and bear witness to the terrible events of the past two centuries.

Your lungs make sure that you use air wisely. Learn how the air passes from the lungs to the bloodstream in this story about your amazing body.

Readers find out what it's like for astronauts to eat, sleep, and work on a manned space flight in this adventurous, Spanish-translated nonfiction title. Children will discover what it's like to be weightless in zero gravity, how Mission control helps keep astronauts safe, and what astronauts do during their free time through vivid photographs, interesting, informative text, and stimulating facts.