La historia del fuego

A Rube Goldberg machine is designed to perform a simple task through a series of elaborate steps. These simple machines are named after Reuben “Rube” Goldberg, an American cartoonist, engineer, and inventor. Learn how these fun machines work and ignite a curiosity about STEAM topics! Created in collaboration with the Smithsonian Institution, this informational text features a hands-on STEAM challenge that is perfect for makerspaces. Make STEAM career connections with career advice from Smithsonian employees working in STEAM fields. Perfect for school reports and projects, this Spanish...

La inexplicable desaparición del gentleman Atticus Craftsman en el corazón de las tinieblas de la España profunda parece estar relacionada con las malas artes de cinco mujeres desesperadas, las empleadas de la revista Librarte, capaces de cualquier cosa con tal de conservar su trabajo.

George Washington Carver was a skilled botanist who became famous for his work with peanuts and other plants. Readers will discover the captivating life of this incredible scientist in this engaging scientific biography translated in Spanish. Using colorful photos and graphs, children will learn why Carver was known as "The Plant Doctor" as a child and how his work with peanuts, sweet potatoes, and pecans helped change the way people used plants! The helpful glossary and index aid in better understanding of the content, while a simple, interesting experiment leaves Spanish-speaking children...

Todos filosofamos, pero no siempre sabemos que lo hacemos. Los libros de filosofía suelen desanimar a muchos lectores por su carácter abstracto e incomprensible. Sin embargo, sus temas centrales apenas han cambiado desde los tiempos de Platón y Aristóteles. La colaboración entre KATHERINE C. EVANS y JENNY TEICHMAN para explicar cuáles son esos temas básicos a quienes nunca han leído nada de filosofía ha dado como resultado la presente obra. FILOSOFÍA: UNA GUÍA PARA PRINCIPIANTES está dividida en seis apartados (metafísica, ética, política, ciencia, lógica, el sentido de la...