¿qué Hace Un Ingeniero?

John Wayne Cleaver tiene 15 años y sabe que es diferente. Pero no porque sólo tenga un amigo ni porque ayude a su madre en el depósito de cadáveres. John es un sociópata que reconoce en sí mismo los clásicos signos de ser un incipiente asesino en serie. Para no hacer daño a nadie, John se ha creado un conjunto rígido de reglas para controlar su naturaleza más oscura y tener una vida normal. Pero cuando empiezan a haber una cadena de horripilantes asesinatos en su ciudad, John utilizará sus conocimientos sobre los asesinos en serie para investigar quién tiene aterrorizado el...

All Spanish Prepositions This book is intended to explain how to use the 23 prepositions existing in the Spanish language to students of Spanish as a second language or to Spanish native speakers who want to acquire, refresh or improve their knowledge on this topic. Studying prepositions in any language is one of the hardest tasks because there are several rules to follow as well as some exceptions. The various rule categories are explained for each preposition along with numerous examples. These examples cover different contexts to give the reader multiple usage options of the language...

Provides an overview of the design, uses, weapons, and equipment of U.S. Navy submarines. Written in English and Spanish.

"Some things are so huge or so old that it's hard to wrap your mind around them. But what if we took these big, hard-to-imagine objects and events and compared them to things we can see, feel and touch? Instantly, we'd see our world in a whole new way." So begins this endlessly intriguing guide to better understanding all those really big ideas and numbers children come across on a regular basis. Author David J. Smith has found clever devices to scale down everything from time lines (the history of Earth compressed into one year), to quantities (all the wealth in the world divided into one...