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Biographical And Science-Related Information, Examining The Life Of Albert Einstein And His Knowledge Of Physics.

Who were the earliest Americans? When, how, and from where did they enter and spread across the continent? And what is their relationship to modern Native Americans? Anthropologists develop theories to answer these questions based on the evidence they discover. Their theories—and the discoveries that prove and disprove them—are highlighted in this fascinating volume, full of awe-inspiring facts and incredible breakthroughs. Readers will feel like anthropologists and archaeologists themselves as they read about bones and artifacts, and what they reveal about the ancient cultures that roamed...

Este apasionante estudio de Maurizio Viroli, que reivindica al tan vapuleado Nicolas Maquiavelo (1469-1527) como uno de los mas inteligentes historiadores y pensadores politicos de todos los tiempos, es el mejor portico de la nueva coleccion Tiempo de Memoria, en su vertiente de Historia. Fundador de la moderna teoria politica, astuto diplomatico al servicio de su Florencia natal y desapasionado observador de los asuntos humanos, Nicolas Maquiavelo ha dado su nombre a una forma de hacer politica. Se le ha asimilado a la figura de un defensor a ultranza de la idea segun la cual el fin...

Our closest solar system is about 10 light years away. It has two main types of planets. Some are rocky and small, like planet Earth, while others are huge balls of gas, like Jupiter. Learn about how astronomers once thought our solar system was the one and only, to how they have now discovered hundreds of stars with planets orbiting them, which means there could be billions of solar systems in outer space! Just maybe, these alien worlds could host life, like our own amazing planet. This book allows students to use observations of the Sun, moon, and stars to describe patterns that can be...