Betsy Ross

"A biography examining the life of Benjamin Franklin and his leadership as a statesman, scientist, inventor, and printer. Written in graphic-novel format."

While the Great Depression was indisputably a difficult period in American history, it did lead to certain developments that we still benefit from today. One for the most significant examples of this is Social Security, which helps a whole generation of retired Americans. The book offers a concise description of the Great Depression, including analysis of its causes and its effects. Chapters focus on different aspects of the period, including culture, the arts, and science and technology. The dynamic design displays images of posters and experiences from the Depression era. This informative,...

Readers won't have to disassemble their favorite toys to discover what makes them work. This book explores electric, magnetic, and motion-powered toys from design to function. It introduces readers to the six simple machines and explains how they use force and motion to do work. Not every toy is a technological marvel. Readers learn about time-honored favorites including the rocking horse, Slinky, and rattles.

Maps of the different regions of the world show their geographic, cultural, and economic features. Includes text describing the individual coutries.

En esta guía recorremos las posibilidades que nos ofrece el abanico de servicios y aplicaciones Google. Revisamos sus características y funcionamiento así como también los mejores trucos y secretos para aprovechar estas herramientas al máximo. Desde el omnipresente Chrome y nuestras cotidianas búsquedas, hasta los servicios más avanzados como Analytics y Trends, todas las aplicaciones pueden ofrecernos más ¡si las investigamos y aprendemos más sobre ellas!