Problemas de electrónica y electrotecnia

Este volumen recoge una selecci?n de 20 art?culos y ensayos relacionados con la Astronom?a (a veces de forma remota), publicados a lo largo de la pasada d?cada en diferentes publicaciones.

The scientific accuracy, clarity, and visuals of Chemistry: The Central Science make it the most trusted chemistry book available. A comprehensive media package works in tandem with the text. Translated into Spanish.Introduction: Matter and Measurement, Atoms, Molecules, and Ions, Stoichiometry: Calculations with Chemical Formulas and Equations, Aqueous Reactions and Solution Stoichiometry, Thermochemistry, Electronic Structure of Atoms, Periodic Properties of the Elements, Basic Concepts of Chemical Bonding, Molecular Geometry and Bonding Theories, Gases, Intermolecular Forces, Liquids, and...

Eighty-eight lavishly illustrated pages of stepby-step coloured drawings and photographs teaches you how to grow orchids confidently, successfully and professionally. Written for the amateur and the professional without access to sophisticated laboratory equipment and chemicals, this contains all you need to know to become an expert.

La Carta a la señora Cristina de Lorena, gran duquesa de Toscana (título original: Lettera a Madama Cristina di Lorena granduchessa di Toscana) es un carta escrita por el astrónomo, científico e intelectual Renacentista Galileo Galilei, en la que trata el problema de la religión y la ciencia. Por ello mismo se trata de un material sobre crítica textual, con valor literario e incluso teológico (aunque no para la época en que se redactó). La misma está dirigida a uno de los protectores de Galileo, la duquesa Cristina de Lorena, a cuyo ducado pertenecía Pisa, de donde era oriundo el...