Our Eyes Can See PDF Download

Author: Jodi Wheeler-Toppen
Publisher: Raintree
ISBN: 1474741746
Category : Eye
Languages : en
Pages : 25

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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: Susan Denham Wade
Publisher: The History Press
ISBN: 0750992948
Category : Science
Languages : en
Pages : 378

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Eyes were one of the very first body parts to evolve more than 500 million years ago, and their structure has remained virtually unchanged through most of evolutionary history. But eyes alone were never enough for Homo sapiens. From the mastery of fire a million years ago to the smartphone today, humans have repeatedly invented new ways to see their surroundings, each other and themselves. Artificial light, art, mirrors, writing, lenses, printing, photography, film, television, smartphones – these tools didn't just add to our visual repertoire, they shaped cultures around the world and made us who we are. Drawing on sources from anthropology to zoology, neuroscience to Netflix, As Far As the Eye Can See traces the history of seeing from the first evolutionary stirrings of sight and discovers that each time we changed how or what we see, we changed ourselves and the world around us. Along the way, it finds, sight slowly eclipsed our other senses. Are we now at 'peak seeing', the author asks. Can our eyes keep up with technology? Have we gone as far as the eye can see?

Author: Jodi Lyn Wheeler-Toppen
Publisher: Capstone
ISBN: 1496631749
Category : Juvenile Nonfiction
Languages : en
Pages : 24

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Sight is one of the five senses. Our eyes let us see. Simple, fun text teaches readers about the sense of vision and how the eyes let us see. Quizzable text is at an Accelerated Reader ATOS level of 1.0 or lower.

Author: Michael Land
Publisher: Oxford University Press
ISBN: 0191064866
Category : Science
Languages : en
Pages : 320

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Book Description
Vision is the sense by which we and other animals obtain most of our information about the world around us. Darwin appreciated that at first sight it seems absurd that the human eye could have evolved by natural selection. But we now know far more about vision, the many times it has independently evolved in nature, and the astonishing variety of ways to see. The human eye, with a lens forming an image on a sensitive retina, represents just one. Scallops, shrimps, and lobsters all use mirrors in different ways. Jumping spiders scan with their front-facing eyes to check whether the object in front is an insect to eat, another spider to mate with, or a predator to avoid. Mantis shrimps can even measure the polarization of light. Animal eyes are amazing structures, often involving precision optics and impressive information processing, mainly using wet protein - not the substance an engineer would choose for such tasks. In Eyes to See, Michael Land, one of the leading world experts on vision, explores the varied ways in which sight has evolved and is used in the natural world, and describes some of the ingenious experiments researchers have used to uncover its secrets. He also discusses human vision, including his experiments on how our eye movements help us to do everyday tasks, as well as skilled ones such as sight-reading music or driving. He ends by considering the fascinating problem of how the constantly shifting images from our eyes are converted in the brain into the steady and integrated conscious view of the world we experience.

Author: Karen C. Seto
Publisher: Yale University Press
ISBN: 0300241089
Category : Science
Languages : en
Pages : 267

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Stunning satellite images of one hundred cities show our urbanizing planet in a new light to reveal the fragile relationship between humanity and Earth Seeing cities around the globe in their larger environmental contexts, we begin to understand how the world shapes urban landscapes and how urban landscapes shape the world. Authors Karen Seto and Meredith Reba provide these revealing views to enhance readers’ understanding of the shape, growth, and life of urban settlements of all sizes—from the remote town of Namche Bazaar in Nepal to the vast metropolitan prefecture of Tokyo, Japan. Using satellite data, the authors show urban landscapes in new perspectives. The book’s beautiful and surprising images pull back the veil on familiar scenes to highlight the growth of cities over time, the symbiosis between urban form and natural landscapes, and the vulnerabilities of cities to the effects of climate change. We see the growth of Las Vegas and Lagos, the importance of rivers to both connecting and dividing cities like Seoul and London, and the vulnerability of Fukushima and San Juan to floods from tsunami or hurricanes. The result is a compelling book that shows cities’ relationships with geography, food, and society.

Author: Mo Ember
Publisher: Dorrance Publishing
ISBN: 1646101995
Category : Juvenile Fiction
Languages : en
Pages : 30

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Eye Can See By: Mo Ember Stress can definitely take a toll on us, and sometimes our tired and weary eyes see things that aren’t really there. Eye Can See is a tale about the realization about what is reality and what is fantasy—and what can happen when our eyes play tricks on us.

Author: Jennifer Walinga
Publisher: Hasanraza Ansari
ISBN:
Category : Body, Mind & Spirit
Languages : en
Pages : 810

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This book is designed to help students organize their thinking about psychology at a conceptual level. The focus on behaviour and empiricism has produced a text that is better organized, has fewer chapters, and is somewhat shorter than many of the leading books. The beginning of each section includes learning objectives; throughout the body of each section are key terms in bold followed by their definitions in italics; key takeaways, and exercises and critical thinking activities end each section.

Author: Jonathan K. Dodson
Publisher: Crossway
ISBN: 1433574101
Category : Religion
Languages : en
Pages : 172

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A Gospel-Rich, Reproducible Model for Making Disciples as Jesus Intended Biblical discipleship emphasizes encouragement, repentance, and spiritual growth—essential parts of the Christian life. However, well-meaning believers often struggle to follow Jesus, unaware their views are too legalistic, licentious, or individualistic. How can churches and Christians develop a healthy, successful path to disciple-making? In this second edition of Gospel-Centered Discipleship, Jonathan Dodson presents an effective, Spirit-led model for sanctification. Reminding readers that real discipleship is imperfect yet transformational, Dodson encourages Christians to engage more authentically with others as they grow in faith. Drawing from his own failures and successes while following Jesus, Dodson defines discipleship, describes the heart of a disciple, and gives practical guidance for mentor and peer-based discipleship as Jesus intended. Revised and Expanded: Includes three new chapters and new illustrations Applicable: Shows how discipleship can be practical and gospel-centered Theological: Addresses the Holy Spirit's involvement in discipleship Foreword by Matt Chandler: Author of The Explicit Gospel

Author: Theo. LeSieg
Publisher: Random House Books for Young Readers
ISBN: 0375800336
Category : Juvenile Nonfiction
Languages : en
Pages : 37

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Our eyes see flies. Our eyes see ants. Sometimes they see pink underpants. Oh, say can you see? Dr. Seuss’s hilarious ode to eyes gives little ones a whole new appreciation for all the wonderful things to be seen!