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The Tensor Trigonometry, with revealing a tensor nature of the angles and their functions and added by differential trigonometry, is developed for wide applications in various fields. Planimetry includes metric part and trigonometry. In geometries of metric spaces from the end of XIX age their tensor forms are widely used. Trigonometry was remaining in its scalar flat forms. Tensor Trigonometry is its development from Leonard Euler classic forms into spatial k-dimensional (at k > 2) tensor forms with vector and scalar orthoprojections, with step by step increasing a complexity and opportunities. Described in the book are fundamentals of this new mathematical subject with many initial example...
Reprint of the original, first published in 1873.
Both Western and Chinese intellectuals have long derided filial piety tales as an absurd and grotesque variety of children’s literature. Selfless Offspring offers a fresh perspective on the genre, revealing the rich historical worth of these stories by examining them in their original context: the tumultuous and politically fragmented early medieval era (A.D. 100–600). At a time when no Confucian virtue was more prized than filial piety, adults were moved and inspired by tales of filial children. The emotional impact of even the most outlandish actions portrayed in the stories was profound, a measure of the directness with which they spoke to major concerns of the early medieval Chinese ...
Includes music.
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A “timely, informative, and fascinating” study of 8 inventions—and how they shaped our world—with “totally compelling” insights on little-known inventors throughout history (Elizabeth Kolbert, Pulitzer Prize–winning author of The Sixth Extinction) In The Alchemy of Us, scientist and science writer Ainissa Ramirez examines 8 inventions and reveals how they shaped the human experience: • Clocks • Steel rails • Copper communication cables • Photographic film • Light bulbs • Hard disks • Scientific labware • Silicon chips Ramirez tells the stories of the woman who sold time, the inventor who inspired Edison, and the hotheaded undertaker whose invention pointed the w...
Engineering technology is of crucial importance to the infrastructure on which modern societies depend, and keeping abreast of the latest research and developments in the field is of vital importance. This book presents the proceedings of HCET 2022, the 7th International Technical Conference on Frontiers of Hydraulic and Civil Engineering Technology, originally due to be held, in Sanya, China, from 25-27 September 2022, but instead held as a fully virtual event on Zoom due to continued uncertainty related to the Covid 19 pandemic. HCET is a platform for the dissemination of research results on the latest advances in the areas of hydraulic and civil engineering technology and environmental en...