El ferrocarril transcontinental (The Transcontinental Railroad)

People today refer to the Midwestern and prairie states as flyover country. During the Civil War, crossing those areas was the biggest obstacle in uniting the East and West Coasts of our divided nation. An act of Congress in 1862 authorized the Central Pacific and the Union Pacific railroad companies to build a railroad that would link the coasts. Seven years later, on May 10, 1869, an overwhelmingly immigrant labor force completed the task when a rail line was join in Promontory, Utah. The states had become united at last.

Kids love to cook, and the rise of celebrity chefs has made them even more interested in the culinary arts. This fun book explains how master chefs are made and offers advice for young cooks.

A lo largo de esta entrevista, Armand Mattelart vuelve sucesivamente a las premisas epistemológicas de su aproximación al campo de la comunicación. Explica su elección entre las diferentes teorías. Explicita algunos aspectos que son poco conocidos de su trabajo. En cierto modo, cada uno de los capítulos constituye un espaci o-tiempo que revela, por una lado, las raíces de su conciencia política, el estado de las relaciones de fuerza a nivel internacional, así como los movimientos de ideas en acción, y por otro, la materialidad de su pensamiento y la evolución del campo de estudios...

Learn how scientists channel energy from the sun to power awesome innovations! Created in collaboration with the Smithsonian Institution, this STEAM book will ignite a curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that is perfect for makerspaces and that guides students step-by-step through the engineering design process. Make STEAM career connections with career advice from actual Smithsonian employees working in STEAM fields. Perfect for English language learners, this Spanish book builds 1st grade students’ early literacy skills.

“Dino” Don Lessem brings readers face-to-face with various dinosaur species, detailing their habitats, way of life and how they became extinct. An acclaimed dinosaur expert, Don Lessem has written more than 30 children’s books, writes a popular dinosaur column in Highlights magazine, and was an adviser for Jurassic Park. Take a trip through dinosaur time to meet these horned dinosaurs face-to-face: Torosaurus had the biggest skull of any animal ever! Pentaceratops had five sharp horns on its head! Styracosaurus was as big as an ice cream truck! Plus, you'll get to know Centrosaurus,...