This book explores the fascinating world of orchids, the largest flowering plant family with around 28,000 species. It covers their cultural history, evolution, and ongoing research, appealing to all levels of orchid enthusiasts. With engaging stories, humor, and stunning photographs, it invites readers to appreciate the diversity and significance of these remarkable plants.
The Mind and Art of Marie Bashkirtseff [Premium Color]
The Journal of Marie Bashkirtseff offers a glimpse into the life of a remarkable 19th-century woman whose thoughts and experiences resonate with the Women's Movement. Originally extensive, her writings were distilled into a few hundred pages that have captivated readers and inspired influential authors like Anaïs Nin and Katherine Mansfield. Bashkirtseff's reflections not only document her personal journey but also serve as a testament to the struggles and aspirations of women during her time.
The Laplace transform is a wonderful tool for solving ordinary and partial differential equations and has enjoyed much success in this realm. With its success, however, a certain casualness has been bred concerning its application, without much regard for hypotheses and when they are valid. Even proofs of theorems often lack rigor, and dubious mathematical practices are not uncommon in the literature for students. In the present text, I have tried to bring to the subject a certain amount of mathematical correctness and make it accessible to un dergraduates. Th this end, this text addresses a number of issues that are rarely considered. For instance, when we apply the Laplace trans form method to a linear ordinary differential equation with constant coefficients, any(n) + an-lY(n-l) + · · · + aoy = f(t), why is it justified to take the Laplace transform of both sides of the equation (Theorem A. 6)? Or, in many proofs it is required to take the limit inside an integral. This is always fraught with danger, especially with an improper integral, and not always justified. I have given complete details (sometimes in the Appendix) whenever this procedure is required. IX X Preface Furthermore, it is sometimes desirable to take the Laplace trans form of an infinite series term by term. Again it is shown that this cannot always be done, and specific sufficient conditions are established to justify this operation.
This book by Dr. Joel L. Schiff explores the mathematical nature of the Universe using basic high school math. It covers intriguing topics such as subatomic particles, black holes, and the Theory of Relativity, making complex concepts accessible and highlighting the mathematical beauty of our world.
Dunedin-born artist Grace Joel (1864-1924) exhibited to acclaim in London and Paris, yet she and her art are relatively unknown today. Joel excelled at portraiture and mother and child studies, and was skilled in portraying the nude. She received her artistic training in Melbourne, and lived for the mature years of her career in London, where her work appeared at the prestigious Royal Academy, as well as the Paris Salon and the Royal Scottish Academy. She also held a number of solo exhibitions at prominent venues in Australasian, English and European cities. Today she is claimed by New Zealand, Australia and Britain. One possible reason why Joel's work has not remained visible is that few details of her personal life survive. Only three letters have been found, and they reveal little of the person who wrote them. Undaunted, author Joel (no relation) Schiff has pulled together from the words of her contemporaries, various newspaper accounts, scraps in other historical archives and close study of her extant paintings a portrayal of this talented woman that is as intimate and engaging as her work. He also sets Grace Joel and her work in the times in which she lived, and the artistic communities of which she was a part.