Cosmic analogies: How natural systems emulate the universe

nanomaterials, and the use of computational modeling to collect microscopic information of nano-oxide materials. The amazing thing revealed in the discussion in each chapter of the book is the discovery of new properties frommetal oxides when they turn into nanomaterials as it changes in properties or unusual crystal structures that produce amazing functions. Synthesized metal oxides sometimes have some drawbacks such as the lack of stability of a material when it undergoes a phase transition. So research emerged that then decided to couple metal oxides with carbon nanotubes (CNT) with a hybrid system design to produce controlled nanostructures. Chapters 7 to 13 also impressed us because they presented various applications of nanomaterials in life, such as for NO (Nitrogen Oxides) removal, air and water cleaning, CO2 reduction, photoelectrochemical fuel production, electrochemical energy storage, and gas-sensing. It reveals that nanomaterial is one of the great discoveries to make this world better. This complete and complex material on the basics of nanomaterials and their applications can be a very useful reading resource for readers. The preface of this book presents us with an overview of the contents of the entire book as well as the key features contained. Hence, readers can easily find out the topic of discussion before reading the entire book. The part that we like about this book is that each chapter always begins with an introduction by mentioning existing phenomena and problems so that readers can find out firsthand the reasons for studying and using nanomaterials. Research from previous to recent research is also explained in each chapter so that readers get clear information about improvements in the synthesis, methods, and application of nanomaterials from time to time. Researchers who are interested in developing it for the better will be able to get a clear picture of the shortcomings of previous research and get an idea of which aspects of this nanomaterial need improvement. We are very impressed with this book because the material is presented in a clear, detailed, and well-structured manner. How each author explains the synthesis, method, and application of nanomaterials is very easy to understand. Each chapter also presents curves, graphs, pictures, and tables that can help readers understand the results of the research that has been done. However, unfortunately, for general readers or non-expert readers, it will be difficult to understand the pictures coupledwith themany terms commonly used in the fields of physics and chemistry. We strongly recommend this book as the best resource for students at the advanced undergraduate and graduate level, specifically in fields related to physics, chemistry, natural science, and environmental development, as well as researchers who have an interest in nanomaterial research, environmental research, chemical-physics, or similar. The authors have successfully presented this comprehensive book through their great explanation. We are convinced that this book will get full consideration as their ultimate resource among the intended readers. Nonetheless, someone who does not have the basic science knowledge may be quite hard-pushed to understand this book. Acknowledgements