The field of investigation of astronomical spectroscopy is vast and can provide a wealth of information about the celestial objects observed (Planets, stars, nebulae, novae, supernovae, galaxies, quasars) through the light they emit. Indeed, this light can be broken down into an atomic spectrum, and based on its analysis and current knowledge of physics, it is possible to determine various characteristics of the star being studied.
This book presents methods and tools used for spectrum analysis and covers topics such as:
– the measurement of velocity (radial, orbital, rotational, redshift),
– the evolution over time in certain spectral lines,
– the explosion of a nova or supernova,
– the physical nature of an object (is it a planetary nebula? Is it a galaxy?).
Spectroscopy also allows for the reconstruction of an image by digitizing the surface of a planetary nebula at a given wavelength. It is also possible to estimate the temperature of a star and even evaluate its density.
For each chapter, the author indicates the type of equipment to be used (optics, camera, spectrograph) and explains step-by-step the methodology for producing the necessary data (acquisition, data processing, etc.) using ten concrete examples that the author has tested himself.
This book is intended for amateur astronomers who are curious to learn what can be gleaned from a spectrum so that they can then make their own observations and analyses sometimes rivaling those of professionals !

This book explores the fundamental principles and theories that foster a practical and intuitive understanding of quantum mechanics. Each chapter is concluded with real-world applications, animations, and discussion questions to help readers better visualize and understand quantum phenomena. It is suitable for undergraduate students in physics and related fields who are looking to learn and strengthen their foundational understanding of quantum mechanics. Originally designed for bilingual teaching and learning, the book considers differences in cultural background and pedagogical approach, especially their potential influence on scientific reasoning and habitual expression, aiming to bridge those differences from new perspectives.

This book is an academic monograph based on several decades of research in fieldworks, laboratory studies, and references to a large amount of literature. The whole book is divided into an introduction section which includes: the History of Chinese Amphibian Studies, the Overview of China’s Nature, the Biodiversity and Geographical Distribution of the Amphibians of China, the Ecological Types of the Amphibians of China, the Taxonomic Terms and Measurements of the Amphibians. And followed by a taxonomic section which includes detailed descriptions of China’s known 13 families, 87 genera and 421 species with their Latin names, English names, synonyms, morphological characteristics, biological data, population status, geographic distribution, discussions of classification, and the key to adult amphibians. 

The monograph is divided into two volumes. 

Volume I contains chapters on the introduction, the GYMNOPHIONA, the URODELA and ANURA (including Bombinatoridae, Megophyidae, Bufonidae and Hylidae) totaling more than 200 species and subspecies. 

Volume II includes the Ranidae, Dicroglossidae, Occidozygidae, Rhacophoridae, Microhylidae and 4 introduced species, totaling about 221 species.

This book is an academic monograph based on several decades of research in fieldworks, laboratory studies, and references to a large amount of literature. The whole book is divided into an introduction section which includes: the History of Chinese Amphibian Studies, the Overview of China’s Nature, the Biodiversity and Geographical Distribution of the Amphibians of China, the Ecological Types of the Amphibians of China, the Taxonomic Terms and Measurements of the Amphibians. And followed by a taxonomic section which includes detailed descriptions of China’s known 13 families, 87 genera and 421 species with their Latin names, English names, synonyms, morphological characteristics, biological data, population status, geographic distribution, discussions of classification, and the key to adult amphibians. 

The monograph is divided into two volumes. 

Volume I contains chapters on the introduction, the GYMNOPHIONA, the URODELA and ANURA (including Bombinatoridae, Megophyidae, Bufonidae and Hylidae) totaling more than 200 species and subspecies. 

Volume II includes the Ranidae, Dicroglossidae, Occidozygidae, Rhacophoridae, Microhylidae and 4 introduced species, totaling about 221 species.