Investigador forense (CSI)

Did you know the first battery-powered vehicle was created in the 1830s? People who attended the 1892 World's Fair in Chicago could see one. And in 1894, you could buy an "Electrobat" and travel 25 miles on a single charge! Since then, EVs have surged in popularity and have become much more technologically advanced. Learn the history of EVs, how they work, why they're good for the environment, and discover the future of the electric vehicle! Created in collaboration with the Smithsonian Institution, this Spanish-translated Smithsonian Informational Text builds reading skills while engaging...

The dynamic books and accompanying audio CDs in this series introduce babies and young children to popular and traditional Spanish songs and classic folktales. Perfect for native and nonnative Spanish speakers alike, these guides teach basic vocabulary and are a useful and entertaining resource for helping children develop beginning language skills. Los libros y los CDs de audio adjuntos y dinámicos en esta serie introducen a los niños a canciones populares y tradicionales y cuentos folclóricos clásicos en español. Tanto para hispanohablantes como hablantes no nativos, estas guías...

¿Una época, un periodo, sólo un momento? Ramírez analiza el arte que en estos años y bajo esta advocación se ha producido y/o difundido- la apoteosis Duchamp, las máquinas de Tinguely, los graffiti, el cine y la ciudad, la arquitectura postmoderna...-, sus problemas.

Mysterious ancient ruins, hidden deep in the jungle of southern Mexico In May 1840, explorers John Stephens and Frederick Catherwood road their mules along a steep, muddy jungle path. They were hoping to find the ruins of an ancient, deserted site in Mexico they knew only from visitors’ accounts. Through the trees, they spied the remains of a crumbling stone palace. Palenque! In the weeks they spent there, the men discovered intricately designed buildings and mysterious glyphs, or symbols. Who built this city? What did the glyphs mean? The questions remained largely unanswered until the...