South African Pipe Calabash PDF Download

Author: United States. Department of Agriculture
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Author: David Grandison Fairchild
Publisher:
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Category :
Languages : en
Pages : 0

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Author: David Grandison Fairchild
Publisher:
ISBN:
Category :
Languages : en
Pages : 9

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Author: M. Shaw
Publisher:
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Category : Blacks
Languages : en
Pages : 38

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 390

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Author: Ron Eglash
Publisher:
ISBN: 9780813526140
Category : Mathematics
Languages : en
Pages : 258

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Fractals are characterized by the repetition of similar patterns at ever-diminishing scales. Fractal geometry has emerged as one of the most exciting frontiers on the border between mathematics and information technology and can be seen in many of the swirling patterns produced by computer graphics. It has become a new tool for modeling in biology, geology, and other natural sciences. Anthropologists have observed that the patterns produced in different cultures can be characterized by specific design themes. In Europe and America, we often see cities laid out in a grid pattern of straight streets and right-angle corners. In contrast, traditional African settlements tend to use fractal structures-circles of circles of circular dwellings, rectangular walls enclosing ever-smaller rectangles, and streets in which broad avenues branch down to tiny footpaths with striking geometric repetition. These indigenous fractals are not limited to architecture; their recursive patterns echo throughout many disparate African designs and knowledge systems. Drawing on interviews with African designers, artists, and scientists, Ron Eglash investigates fractals in African architecture, traditional hairstyling, textiles, sculpture, painting, carving, metalwork, religion, games, practical craft, quantitative techniques, and symbolic systems. He also examines the political and social implications of the existence of African fractal geometry. His book makes a unique contribution to the study of mathematics, African culture, anthropology, and computer simulations.

Author: Sir Richard Francis Burton
Publisher:
ISBN:
Category : Africa, Central
Languages : en
Pages : 458

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The ivory porter; Zanzibar town from the sea; A town on the Mrima; Explorers in East Africa; The East African Ghauts; View in Unyamwezi

Author: Mark W. Moffett
Publisher: Univ of California Press
ISBN: 0520945417
Category : Science
Languages : en
Pages : 289

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Intrepid international explorer, biologist, and photographer Mark W. Moffett, "the Indiana Jones of entomology," takes us around the globe on a strange and colorful journey in search of the hidden world of ants. In tales from Nigeria, Indonesia, the Amazon, Australia, California, and elsewhere, Moffett recounts his entomological exploits and provides fascinating details on how ants live and how they dominate their ecosystems through strikingly human behaviors, yet at a different scale and a faster tempo. Moffett’s spectacular close-up photographs shrink us down to size, so that we can observe ants in familiar roles; warriors, builders, big-game hunters, and slave owners. We find them creating marketplaces and assembly lines and dealing with issues we think of as uniquely human—including hygiene, recycling, and warfare. Adventures among Ants introduces some of the world’s most awe-inspiring species and offers a startling new perspective on the limits of our own perception. • Ants are world-class road builders, handling traffic problems on thoroughfares that dwarf our highway systems in their complexity • Ants with the largest societies often deploy complicated military tactics • Some ants have evolved from hunter-gatherers into farmers, domesticating other insects and growing crops for food

Author: F. Halle
Publisher: Springer Science & Business Media
ISBN: 3642811906
Category : Science
Languages : en
Pages : 457

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Author: Victor R Preedy
Publisher: Academic Press
ISBN: 0123849381
Category : Technology & Engineering
Languages : en
Pages : 1612

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While there have been many claims of the benefits of teas through the years, and while there is nearly universal agreement that drinking tea can benefit health, there is still a concern over whether the lab-generated results are representative of real-life benefit, what the risk of toxicity might be, and what the effective-level thresholds are for various purposes. Clearly there are still questions about the efficacy and use of tea for health benefit. This book presents a comprehensive look at the compounds in black, green, and white teas, their reported benefits (or toxicity risks) and also explores them on a health-condition specific level, providing researchers and academics with a single-volume resource to help in identifying potential treatment uses. No other book on the market considers all the varieties of teas in one volume, or takes the disease-focused approach that will assist in directing further research and studies. Interdisciplinary presentation of material assists in identifying potential cross-over benefits and similarities between tea sources and diseases Assists in identifying therapeutic benefits for new product development Includes coverage and comparison of the most important types of tea – green, black and white