Energías alternativas y tradicionales


Book Description

La produccción, transporte y consumo de energía son quizá, las actividades humanas más lesivas para el medio ambiente: cambio climático, lluvias ácidas, mareas negras, residuos radiactivos, terribles accidentes como el de Chernobil, líneas de alta tensión en las que mueren miles de aves..., son algunos efectos. La energía es tremendamente venenosa, como se dice en este libro. Lo ideal es vivir consumiendo la menor cantidad de energía posible, porque la única que no contamina es la que no se consume. Pero la energía está muy unida hoy a nuestra calidad de vida y se hace imprescindible su consumo; por lo tanto, se trataría de reducir éste lo más posible y de usar fuentes menos lesivas para el medio ambiente. En este libro se repasan de forma muy pedagógica las propiedades y efectos de las diferentes fuentes de energías, ya sean tradicionales, ya alternativas. Leyendo el libro se entiende perfectamente la necesidad de un cambio drástico en el modelo energético sobre el que se basa la sociedad y se pueden conocer algunas fuentes alternativas de energía que podrían formar parte del nuevo modelo.




Energías alternativas. Handbook


Book Description

En este libro podrá encontrar una guía esencial para utilizar energías renovables en su vivienda. Se analizan siete tipos de fuentes alternativas de energía, con explicaciones sencillas, ilustraciones claras y prácticas e información de las que mejor funcionan para cada tipo de vivienda.




Opciones energéticas


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Energías alternativas


Book Description




Energias alternativas


Book Description







AP Spanish Language and Culture All Access w/Audio


Book Description

All Access for the AP* Spanish Language Exam - Completely Revised for the New 2014 Exam! Book + Web + Mobile Everything you need to prepare for the Advanced Placement* exam, in a study system built around you! There are many different ways to prepare for an Advanced Placement* exam. What's best for you depends on how much time you have to study and how comfortable you are with the subject matter. To score your highest, you need a system that can be customized to fit you: your schedule, your learning style, and your current level of knowledge. This book, and the free online tools that come with it, will help you personalize your AP* Spanish Language prep by testing your understanding, pinpointing your weaknesses, and delivering flashcard study materials unique to you. REA's All Access system allows you to create a personalized study plan through three simple steps: targeted review of exam content, assessment of your knowledge, and focused study in the topics where you need the most help. Here's how it works: Review the Book: Study the topics tested on the AP* Spanish Language exam and learn proven strategies that will help you tackle any question you may see on test day. Test Yourself and Get Feedback: As you review the book, test yourself with three topic level quizzes. Score reports from your free online quizzes give you a fast way to pinpoint what you really know and what you should spend more time studying. Improve Your Score: Armed with your score reports, you can personalize your study plan. Review the parts of the book where you are weakest, and use the REA Study Center to create your own unique e-flashcards, adding to the 100 free cards included with the book. Visit The REA Study Center for a suite of online tools: The best way to personalize your study plan and truly focus on your weaknesses is to get frequent feedback on what you know and what you don't. At the online REA Study Center, you can access three types of assessment: our online audio component, quizzes, and two full-length practice tests. Each of these tools provides true-to-format questions and delivers a detailed score report that follows the topics set by the College Board. Audio Component: Our audio component provides excellent preparation for the exam's listening comprehension section. Topic Level Quizzes: Short, 15-minute quizzes are available throughout the review and test your immediate understanding of the topics just covered. Full-Length Practice Tests: After you've finished reviewing the book, take our two full-length practice exams to test yourself under exam-day conditions. Available both in the book and online, these tests give you the most complete picture of your strengths and weaknesses. We strongly recommend that you take the online version of the exams for the added benefits of timed testing, automatic scoring, and a detailed score report. Improving Your Score with e-Flashcards: With your score reports from the tests, you'll be able to see exactly which AP* Spanish Language topics you need to review. Use this information to create your own flashcards for the areas where you are weak. And, because you will create these flashcards through the REA Study Center, you'll be able to access them from any computer or smartphone. REA's All Access test prep is a must-have for students taking the AP* Spanish Language exam!




Energías alternativas


Book Description




Energías Alternativas


Book Description

Las energías alternativas se encuentran ligadas al hombre desde su origen, ya que vivimos en un planeta y recibimos la energía de una estrella. Este texto intentará dar a conocer el pasado, presente y futuro de este tipo de energía, erróneamente denominadas «energía alternativas», ya que hoy en día la energía producida por este tipo de técnicas no llega a cubrir las necesidades energéticas a las cuales el mundo está acostumbrado. En la actualidad, estas energías no pueden sustituir a las energías convencionales por completo y, en consecuencia, no pueden ser alternativa presente, aunque sí futura, siempre que se desarrollen planes de inversión energética y se incentive el estudio y desarrollo de este tipo de energías.




Energías alternativas


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