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Reproduction of the original: Cosmos by Alexander von Humboldt
Knowledge provides us with business opportunities, job prospects, and conversation topics. But in the age of information overload, it's challenging to identify what knowledge to focus on. This book, curated and summarized by a Korean author with advice from his family members (a senior government official and a consultant), presents the most popular and useful nature, technology, and arts knowledge in an engaging way. It's filled with immediately applicable discussion topics, ideas, and life tips. By missing this book, you'll miss out on these valuable insights. Don’t let your competitors get their hands on this book before you do!
Reprint of the original, first published in 1869.
This catalog is the first in-depth investigation of comets that were reported since the 17th century, but not confirmed and subsequently lost. Volume I of this two-volume work covers objects observed between 1600 and 1899, a period that was dominated by visual observations and was experiencing a rapid evolution in science. The book uniquely combines the history and culture of comet hunting and discovery with modern tools of orbital mechanics to present a wholesome catalog of unconfirmed and suspected comets. Each case includes a presentation of the observations, a discussion about the observer (when possible), consideration of the historic context, and a conclusion as to the nature of the object. In most cases, the book presents material from original sources, including some never before published that were acquired from observatories, libraries, and historical societies around the world. Although some of these unconfirmed comets turned out to be misidentifications of planets or star clusters, fabrications, or poor observations of comets that were already being observed, the Authors did identify many objects that were likely real comets. In some cases, the Authors were even able to derive orbits for the first time. These observations may be valuable in the future, as they could prove to be observations of periodic comets still to be discovered.