El carbón: origen, atributos, extracción y usos actuales en Colombia

This volume provides a comprehensive overview of current researches on science in the Muslim-Arab world. The papers deal with the religious and institutional context, mathematics, optics, astronomy, mechanics, natural philosophy, and pharamacology.The present volume also includes a general author index of the 21 volumes that make up the proceedings of the XXth International Congress of History of Science.

La finalidad de este primer curso de Física, es la de introducir al estudiante en los amplios terrenos de la Ciencia, de forma que fundamente sus opciones en base a hechos debidamente analizados y concatenados

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.

El propósito de este volumen es presentar a un amplio público no especializado una historia analítica de la biología a partir del siglo XIX, de sus objetivos, métodos, transformaciones y logros hasta llegar a constituirse como la moderna disciplina que hoy conocemos