Técnico electricista 1 - Curso visual y práctico

En 1912 el británico Robert Scott y el noruego Roald Amundsen rivalizaron sobre las nieves de la Antártica por ser el primer hombre en pisar el polo sur. Los dos aventureros arriesgaron su vida y las de sus acompañantes en una carrera tan angustiosa como temeraria que se saldo con una rotunda victoria y una trágica derrota. La trepidante historia de esta pugna se completa en el libro con la narración de otros arriesgados intentos por conquistar el polo sur.

The United States grew rapidly from the time of the Louisiana Purchase to the building of the Transcontinental Railroad. All of this expansion came at the expense of Native American populations that had either lived in the region for centuries or been forced there from ancestral homes in the East. Tribes memorably fought on their own and together in an doomed effort to retain the land and a lifestyle that had long sustained their families. This book outlines some of the major conflicts of the Westward Expansion, and of the treaties and were signed, and often broken, by representatives of the...

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Learn how technology has improved lighthouses over time with this book that features a hands-on STEAM challenge and uses real-world examples to give insight into how the engineering design process is used to solve problems.