Colour and Vision: Through the Eyes of Nature PDF Download

Author: Steve Parker
Publisher:
ISBN: 9780565093891
Category :
Languages : en
Pages : 128

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Author: Georg Glaeser
Publisher: Springer
ISBN: 3319174762
Category : Science
Languages : en
Pages : 214

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Book Description
With fascinating, spectacularly beautiful images, the book piques readers’ curiosity about the diversity of visual organs. This book is the result of a dual approach – scientific as well as aesthetic. The compelling images are accompanied by an easy-to-read, understandable text, aimed at both scientists and the educated public, and generally anyone interested in the beauty of nature. Thanks to this combination, the book presents the staggering diversity of eyes in the animal kingdom and provides countless insights into the intriguing mechanisms at work – from simple pigment cups to independently flexible, telescopic, facet and lens eyes. Educational, exciting, entertaining till the last page, this is a book for anyone who is interested in evolution, nature and the miracle of life.

Author: Simon Ings
Publisher: Bloomsbury Paperbacks
ISBN: 9780747592860
Category : Evolution (Biology)
Languages : en
Pages : 0

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We spend about one-tenth of our waking hours completely blind - only one percent of what we see is in focus at any one time. You don't need eyes to see - blind volunteers have been taught to see through their chests. Through a spellbinding mix of scientific research, mathematics, philosophy, history, myth, anecdote and language theory, Simon Ings brilliantly unravels the never-ending puzzle of how and why we see in the way that we do. With the help of a beguiling mix of illustrated visual conundrums and enigmas, Ings triumphs with a compelling dissection of the eye's age-old mysteries that is both seriously interesting and interestingly fun.

Author: Josef Albers
Publisher: Yale University Press
ISBN: 0300179359
Category : Art
Languages : en
Pages : 210

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An experimental approach to the study and teaching of color is comprised of exercises in seeing color action and feeling color relatedness before arriving at color theory.

Author: C. A. Brebbia
Publisher: WIT Press
ISBN: 1845645685
Category : Art
Languages : en
Pages : 157

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Book Description
This book is ambitiously inter-disciplinary and may be divided into four main sections, defined in terms of the authors themselves. Firstly, there are two contributions by biologists. Secondly, the largest section is by practising artists. Thirdly, there are two engineering-based contributions. Finally, two contributions address some of the historical proponents of colour theory and art. These eleven works, in full colour, form a striking contribution to the commonwealth of colour studies and to a possible unification of Snow's two cultures.Colour and inter-disciplinarity go hand in hand. This so often involves the authors leaving the comfort zone of their original speciality and striving for excellence in another. The personal story of Franziska Schenk is but one good example.It seems that our perceptions of aesthetics and beauty must be very flexible indeed as to find absolute opposites equally fascinating. If so, it goes to show how wonderful are the construction and operation of the human brain. Does psychology win in the end? Does colour lead to a single culture?

Author: Mark Changizi
Publisher: BenBella Books, Inc.
ISBN: 193525121X
Category : Science
Languages : en
Pages : 240

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Book Description
In The Vision Revolution: How the Latest Research Overturns Everything We Thought We Knew About Human Vision, Mark Changizi, prominent neuroscientist and vision expert, addresses four areas of human vision and provides explanations for why we have those particular abilities, complete with a number of full-color illustrations to demonstrate his conclusions and to engage the reader. Written for both the casual reader and the science buff hungry for new information, The Vision Revolution is a resource that dispels commonly believed perceptions about sight and offers answers drawn from the field's most recent research. Changizi focuses on four “why" questions: 1. Why do we see in color? 2. Why do our eyes face forward? 3. Why do we see illusions? 4. Why does reading come so naturally to us? Why Do We See in Color? It was commonly believed that color vision evolved to help our primitive ancestors identify ripe fruit. Changizi says we should look closer to home: ourselves. Human color vision evolved to give us greater insights into the mental states and health of other people. People who can see color changes in skin have an advantage over their color-blind counterparts; they can see when people are blushing with embarrassment, purple-faced with exertion or the reddening of rashes. Changizi's research reveals that the cones in our eyes that allow us to see color are exquisitely designed exactly for seeing color changes in the skin. And it's no coincidence that the primates with color vision are the ones with bare spots on their faces and other body parts; Changizi shows that the development of color vision in higher primates closely parallels the loss of facial hair, culminating in the near hairlessness and highly developed color vision of humans. Why Do Our Eyes Face Forward? Forward-facing eyes set us apart from most mammals, and there is much dispute as to why we have them. While some speculate that we evolved this feature to give us depth perception available through stereo vision, this type of vision only allows us to see short distances, and we already have other mechanisms that help us to estimate distance. Changizi's research shows that with two forward-facing eyes, primates and humans have an x-ray ability. Specifically, we're able to see through the cluttered leaves of the forest environment in which we evolved. This feature helps primates see their targets in a crowded, encroached environment. To see how this works, hold a finger in front of your eyes. You'll find that you're able to look “through" it, at what is beyond your finger. One of the most amazing feats of two forward-facing eyes? Our views aren't blocked by our noses, beaks, etc. Why Do We See Illusions? We evolved to see moving objects, not where they are, but where they are going to be. Without this ability, we couldn't catch a ball because the brain's ability to process visual information isn't fast enough to allow us to put our hands in the right place to intersect for a rapidly approaching baseball. “If our brains simply created a perception of the way the world was at the time light hit the eye, then by the time that perception was elicited—which takes about a tenth of a second for the brain to do—time would have marched on, and the perception would be of the recent past," Changizi explains. Simply put, illusions occur when our brain is tricked into thinking that a stationary two-dimensional picture has an element that is moving. Our brains project the “moving" element into the future and, as a result, we don't see what's on the page, but what our brain thinks will be the case a fraction of a second into the future. Why Does Reading Come So Naturally to Us? We can read faster than we can hear, which is odd, considering that reading is relatively recent,

Author: Dr. Vijay Bhushan Gautam
Publisher: Visionary Publications
ISBN: 9354162061
Category : Literary Collections
Languages : en
Pages : 205

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Book Description
Ever after independence, vast changes have occurred in terms of socio-economic strata & literacy levels, with the result India has witnessed vast changes. India of 2020 is greatly transformed. India of 1950s and 60s had one essential need to "see". But, with a large part of the society being literate, with modern outlook and access to information and knowledge, today's Indian aspires to "see well" and wishes to maintain a good vision. It is no longer a situation, where rural person does not have access to better equipped eye hospital. It is true that, even today, a good percentage of the population is deprived of quality eye care. But, the great strides by the NPCB & the NGOs associated with this umbrella organization under its programmes are doing a commendable job. In a refined and sensitive society, there is always a yearning for betterment in life & to attain improved standards in terms of quality eye care. The awareness about eye care has to extend beyond normal parameters in consonance with the upheaval the society is witnessing. The increasing need and the changing trends and civilization have necessitated to emphasize more on aspects like: occupational hazards, environmental adversities, nutritional aspects of health etc. People working in advanced professions like aviation, medical and surgical field, information technology and even fashion technology, need to have refined information and access to advanced eye care. With this in view, the current book has been authored.

Author: Penelope A. Farrant
Publisher: Blandford Press
ISBN: 9780713728064
Category : Photography
Languages : en
Pages : 202

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Book Description
Colour is all around, and this study looks at all aspects of colour, from physical and atmospheric phenomena to the world of plants and animals. The significance of colours in nature is considered - how they are produced, how they are perceived and their probable function and purpose.

Author: Optical Society of America. Committee on Colorimetry
Publisher:
ISBN:
Category : Color
Languages : en
Pages : 440

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Author: Michael F. Land
Publisher: OUP Oxford
ISBN: 0191625361
Category : Science
Languages : en
Pages : 288

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Animal Eyes provides a comparative account of all known types of eye in the animal kingdom, outlining their structure and function with an emphasis on the nature of the optical systems and the physical principles involved in image formation. A universal theme throughout the book is the evolution and taxonomic distribution of each type of eye, and the roles of different eye types in the behaviour and ecology of the animals that possess them. In comparing the specific capabilities of eyes, it considers the factors that lead to good resolution of detail and the ability to function under a wide range of light conditions. This new edition is fully updated throughout, incorporating more than a decade of new discoveries and research.