Mi mundo dia a dia / My world every day

Explains the basic science of flight, the problems of getting vehicles into the air, different types of engines, and aircraft design, and includes instructions for making aircraft models.

Though few may know his name, his achievement as the first European to discover San Diego Bay and many other areas on the California coast enshrines his name in the annals of American history. This exciting volume tells Cabrillo's story from an unknown soldier to the intrepid conquistador, crossbowman, landowner, shipbuilder, and explorer he became. As one of Hernan Cortes' soldiers during the conquest of Mexico and a founder of Guatemala, his actions loomed large in the future of both South America and North America. By both educating and entertaining, this biography illuminates a...

Explains that people take measurements to find out how tall, how long, how far, how fast, how heavy, how much, and what size.

¿Por qué los judíos son objeto de un odio particular?¿Cuándo apareció el antisemitismo? ¿Quiénes son los sabios de Sion? ¿Por qué Hitler detestaba a los judíos? ¿Existe un “negocio de la Shoah”? ¿El antisionismo es antisemitismo? Este libro no duda en hacer las preguntas más perturbadoras. Desarma con claridad y tranquilidad las ideas falsas, las trampas y las teorías del complot. Una guía indispensable para comprender las raíces del antisemitismo y reflexionar acerca de su actualidad.