Cosmos en 3D

Interesting facts and experiments explore the dynamics of a race car engine to teach about air flow and drag, safety equipment and roll cages, the fuel system and horsepower, suspension and track bars, internal combustion, why race cars don't have speedometers, how roof flaps are designed like airplane wings, and more.

Relacionarse con la gente ofrece infinitas recompensas. Ya si se trate de comenzar en un nuevo empleo, obtener un ascenso, conseguir una venta, incorporarse a un nuevo grupo o superar el examen de los futuros suegros, el secreto del éxito se basa en la capacidad para conectar con los demás. De hecho, nuestro crecimiento personal y nuestra evolución, así como el de las sociedades, se producen como resultado de la conexión con otros seres humanos. Y precisamente la idea más nueva y poderosa para establecer conexiones es lo que revela en su libro Nicholas Boothman. Su programa de...

Each year, Martin Luther King Jr. Day serves as a reminder of the life and work of one of America's greatest civil rights activists. In this informative book, readers will learn about the importance of the civil rights movement and why we celebrate Martin Luther King Jr. Day. Full-color photographs accompany the text. This essential book features accessible language that is ideal for children in the early stages of learning to read.

Presents poetry by the editors and by poets from Puerto Rico, Mexico, and Argentina, along with traditional verse.

A simple introduction to the NASCAR driver who is the son of another winning racer, Dale Earnhardt, Sr.