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This book shows how modern cosmology has led to the idea of dark matter in the universe, and presents a new theory to explain it.
This volume consists of 21 essays on Marsilio Ficino (1433-99), the Florentine scholar-philosopher-magus-priest who was the architect of Renaissance Platonism. They cast fascinating new light on his theology, philosophy, and psychology as well as on his influence and sources.
This book is an enquiry into memory in the Western world. Specifically, memory is the framework of culture, because it links the present to the past - or tradition - and projects it into the future. For this reason, any work focusing on memory involves a double challenge: (1) to reveal the origin of concepts and (2) to glimpse the course of thoughts. This is the case of the present volume, in which the authors make several tastings of Europe's intellectual heritage, by taking into account both the Greek origin of this legacy and its relevance for understanding the European philosophical heritage. In particular, these papers focus on the Aristotelian tradition, the true keystone of Europe, and on other currents of thought that have also played an essential role in the intellectual evolution of the Old Continent. In the latter field, there are contributions, for instance, on philosophical-religious traditions such as Orphism or on certain fundamental aspects of Neoplatonism both in the Classical World and in Christian authors. The volume concludes with various works on the survival of these intellectual trends from the Renaissance to the present day. Consequently, this work offers the opportunity to delve deeper into some of the aspects that define Western civilisation, observed both from its origin and its evolution over the centuries. The volume contains papers in Spanish, Portuguese, Italian, and English. Este libro es una indagación en la memoria del mundo occidental. Específicamente, la memoria es el armazón de la cultura, porque liga el presente al pasado —o tradición— y lo proyecta al futuro. Por ello, toda obra centrada en la memoria entraña un doble reto: (1) revelar el origen de los conceptos y (2) atisbar el rumbo de los pensamientos. Este es el caso del presente volumen, en el que realizan diversas catas en el patrimonio intelectual europeo. Lo hace teniendo en cuenta tanto el origen griego de ese legado como su relevancia para comprender el acervo filosófico europeo. En concreto, se centra en la tradición aristótelica, verdadera clave de bóveda de Europa, y en otras corrientes de pensamiento que también han jugado un papel esencial en la evolución intelectual del viejo continente. En éste último ámbito hay contribuciones, por ejemplo, sobre tradiciones filosófico-religiosas como el orfismo o sobre determinados aspectos fundamentales del neoplatonismo en el mundo clásico y en autores cristianos. Concluye el volumen con diversos trabajos sobre la pervivencia de esas tendencias intelectuales desde el renacimiento hasta nuestros días. En consecuencia, esta obra ofrece la oportunidad de profundizar en algunos aspectos que definen nuestra civilización, observados tanto desde su origen como desde su evolución a lo largo de los siglos.
The relationship between science and democracy has become a much-debated issue. In recent years, we have even seen an exponential growth in literature on the subject. No doubt, the interest has partly been justified by the concern of public opinion over the technological repercussions of scientific research. Moreover, there are scientific theories that, if they were accepted, would allegedly imply the adoption of policies that have wide social consequences, as well as a rethinking of deeply-rooted habits on the part of the citizens. These considerations alone allow us to understand the reasons for the interest in the, at times troublesome, relationships between science and public opinion which characterize democratic societies.
No resulta difícil imaginar a nuestros ancestros contemplando admirados el maravilloso cielo nocturno. Y fue ya en la Antigüedad cuando empezaron a elaborarse las primeras teorías sobre los componentes constitutivos del universo, material y etéreo, que nos envuelve. Este libro se centra sobre todo en un punto concreto: investigar el momento en que la cosmología se convirtió por fin en una verdadera ciencia, en que las teorías sobre el cosmos devinieron teorías científicas. Eso no sucedió de la noche a la mañana, ya que fue un proceso lento, que ocupó gran parte del siglo XX y en el que intervinieron numerosos astrónomos, cosmólogos y teóricos de la física fundamental, con sus grandes aciertos y, en ocasiones, crasos errores. Todo este proceso se fundamentó en conciliar los datos empíricos obtenidos de las observaciones astronómicas (Leavitt, Slipher, Hubble) con un marco teórico muy sólido: la relatividad general de Einstein. Teoría que finalmente permitió (Friedmann, De Sitter, Lemaître) interpretar y entender los resultados obtenidos por los astrónomos. Visto en perspectiva, las aportaciones del pasado siglo tuvieron unas implicaciones extraordinarias, casi increíbles, que cambiaron por completo nuestra visión del universo: de ser pequeño, estático, inmutable y eterno pasó a ser enorme, a tener un principio, a partir de casi nada, y a expandirse aceleradamente. Lo que ha creado, a su vez, un nuevo misterio donde por un tiempo reinó la certeza absoluta.
Nations worldwide consider education an important tool for economic and social development, and the use of innovative strategies to prepare students for the acquisition of knowledge and skills is currently considered the most effective strategy for nurturing engaged, informed learners. In the last decade especially, European countries have promoted a series of revisions to their curricula and in the ways teachers are trained to put these into practice. Updating curriculum contents, pedagogical facilities (for example, computers in schools), and teaching and learning strategies should be seen as a routine task, since social and pedagogical needs change over time. Nevertheless, educational institutions and actors (educational departments, schools, teachers, and even students) normally tend to be committed to traditional practices. As a result of this resistance to change within educational systems, implementing educational innovation is a big challenge. The authors of the present volume have been involved with curriculum development since 2003. This work is an opportunity to present the results of more than a decade of research into experimental, inventive approaches to science education. Most chapters concern innovative strategies for the teaching and learning of new contents, as well as methods for learning to teach them at the pre-university school level. The research is focused on understanding the pedagogical issues around the process of innovation, and the findings are grounded in analyses of the limits and possibilities of teachers’ and students’ practices in schools.