Montaje mecánico en instalaciones solares fotovoltaicas

The sun is responsible for all life on Earth, but what exactly is it? Our star is an amazing force that can be as dangerous as it is important. From solar flares to the threat of blowing up altogether, the sun is one of the most interesting things in our solar system. Readers take a trip to the sun to see how it works and exactly what it is made of. Theyll learn about the life cycle of a star and see just how long we have until we have to find a new planet to call home. Dont worry, theyll be happy to learn that (hopefully) we have millions of years left!

James Lovelock —autor de la La venganza de la Tierra, Planeta, 2007— pone sobre la mesa las pruebas de un futuro poco esperanzador para nuestro planeta. El polémico científi co creador de la teoría de Gaia —que considera la Tierra como organismo vivo que se autorregula en pos de su supervivencia— presenta aquí una verdad aún más incómoda que la de Al Gore. Ninguna acción humana tiene la capacidad de reducir las consecuencias con la rapidez suficiente, ni siquiera para frenar el cambio climático. Sin embargo, la civilización tiene el deber de sobrevivir en los pocos refugios...

Learn about the rich history of Mission San Francisco de Asís: how it started, the people who ran it, the indigenous population, and its legacy today.

Que Hay is the market-leading Spanish course for 11-14 year olds across the Caribbean. Newly updated, it is as relevant and lively as ever. This comprehensive course follows an immersive approach that encourages students to enjoy and full engage with the languages and culture, providing a solid foundation in everyday Spanish and ideal preparation for studying Spanish at CSEC.