Perfect Planet, Clever Species - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Perfect Planet, Clever Species write by William C. Burger. This book was released on 2011-04-29. Perfect Planet, Clever Species available in PDF, EPUB and Kindle. [A] masterful survey. - Times Literary Supplement[A] concise ... extremely well-written journey about this planet''s history.... Highly recommended. - ChoiceIn a feat that may rival time travel, Burger has condensed 4.5 billion years into 294 eminently readable pages as he builds a case for solitude in our Milky Way galaxy. [Burger] writes with the clarity and humor of one who has had experience communicating complicated ideas to the lay public.-Boston GlobeFor many years the federal government funded the Search for Extraterrestrial Intelligence (SETI), later popularized by Carl Sagan''s novel Contact and the movie starring Jodie Foster. Though in actuality SETI never did make contact with signals from an alien civilization, the search continues to this day through privately funded endeavors. How likely is it that intelligent life exists elsewhere in the universe? This is the intriguing question that has prompted William Burger''s illuminating and absorbing exploration of the unusual circumstances surrounding life on earth.Examining the critical episodes in our planet''s early history and the peculiar trajectory of life on our world, Burger shows that the long odyssey of planet Earth may be utterly unique in our galaxy. For example, he describes features of the sun that are far from average. By some estimates, 95 percent of the other stars in the Milky Way galaxy are smaller, and it is unlikely that any of them could supply the energy requirements for a life-sustaining planet such as our own. Earth, as the third planet from the sun, sits within the Goldilocks orbit: it is in the perfect position to receive not too much heat (like Mercury and Venus) and not too little (like more distant planets of the solar system) but just the right amount to foster the development of life.Turning to the evolution of life itself, Burger points out a host of amazing accidents (for example, the extinction of dinosaurs and the proliferation of flowering plants) that make the steps along the way to Homo sapiens seem like very rare events indeed. He also calls attention to the curious fact that the early hominid brain tripled in size over the relatively short time period leading to the appearance of modern human beings. Finally, he notes aspects of humanity''s cultural evolution that seem unlikely to have been duplicated anywhere else.Burger''s enlightening evaluation of evolutionary and cosmic history, full of fascinating details, shows that the human achievement may be unique in our galaxy.More Praise for Perfect Planet, Clever Species:This is by far the best existing treatment of the SETI problem. Based on the most recent findings of science, it analyzes in full detail all the unique factors that would have to be right for success. Particularly fascinating is Burger''s critical study of the ten thousands of unpredictable steps in the evolution of Homo sapiens after the origin of life. A splendid history of mankind. - Ernst Mayr, Harvard UniversityI believe that this brilliant, richly documented and well-written book, on par in historical influence (or importance) with classics such as Rachel Carson''s Silent Spring, Paul Ehrlich''s The Population Bomb, E.O. Wilson''s On Human Nature or Sarah Blaffer''s Mother Nature, will go down as one of the most significant philosophical guides for us to follow as we stumble blindly into the 21st Century. - Hugh H. Iltis, Emeritus Botany Professor, University of Wisconsin-MadisonWith a lively narrative and at a headlong pace, Bill Burger leads us expertly from the origin of our planet through to the evolutionary history of humankind. Along the way, he repeatedly highlights the part played by chance occurrence of favourable conditions. Such contingency means that we can reconstruct our past but not predict our future. But we can address Burger''s central question: ''Are we alone?'' Soberingly, he builds up step-by-step to his conclusion.... The history of evolution on Earth is a compelling story in its own right and one tha
What Makes Biology Unique?
What Makes Biology Unique? - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook What Makes Biology Unique? write by Ernst Mayr. This book was released on 2004-08-09. What Makes Biology Unique? available in PDF, EPUB and Kindle. This book, a collection of essays written by the most eminent evolutionary biologist of the twentieth century, explores biology as an autonomous science, offers insights on the history of evolutionary thought, critiques the contributions of philosophy to the science of biology, and comments on several of the major ongoing issues in evolutionary theory. Notably, Mayr explains that Darwin's theory of evolution is actually five separate theories, each with its own history, trajectory and impact. Natural selection is a separate idea from common descent, and from geographic speciation, and so on. A number of the perennial Darwinian controversies may well have been caused by the confounding of the five separate theories into a single composite. Those interested in evolutionary theory, or the philosophy and history of science will find useful ideas in this book, which should appeal to virtually anyone with a broad curiosity about biology.
The Planet-Girded Suns: Our Forebears' Firm Belief in Inhabited Exoplanets
The Planet-Girded Suns: Our Forebears' Firm Belief in Inhabited Exoplanets - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook The Planet-Girded Suns: Our Forebears' Firm Belief in Inhabited Exoplanets write by Sylvia Engdahl. This book was released on 2012-06-01. The Planet-Girded Suns: Our Forebears' Firm Belief in Inhabited Exoplanets available in PDF, EPUB and Kindle. Interest in exoplanets--the worlds of other stars--is not new. From the late 17th century until the end of the 19th, almost all educated people believed that the stars are suns surrounded by inhabited planets--a belief that was expressed not in science fiction, but in serious speculation, both scientific and religious, as well as in poetry. Only during the first half of the 20th century was it thought that life-bearing exoplanets are rare. This is not a science book--rather, it belongs to the category known as History of Ideas. First published by Atheneum in 1974, it tells the story of the rise, fall, and eventual renewal of widespread conviction that we are not alone in the universe. In this 2012 updated edition the chapters dealing with modern speculation have been revised to reflect the progress science has made during the past 40 years, including the actual detection of planets orbiting other stars. However, it is not intended to be more than a brief introduction to today's views; its focus is on little-known facts about those of the past. Why should we care what our forebears believed? Now, the question of ET life is a matter for investigation by science. Yet it's significant that most educated people of past centuries were convinced that other inhabited worlds exist, without any scientific evidence whatsoever. This historical fact reveals that human beings have an instinctive sense of kinship with the wider universe and a desire to see the realms that lie beyond this one small planet--and perhaps, eventually, to go there. Our ancestors conceived of such voyages only in a spiritual sense, as occurring after death. But we who have taken our first small steps into space are aware that our descendants may set foot on the worlds of other suns. Just as in the 17th century people were initially upset by the new knowledge that the stars are suns scattered in space rather than lights fixed to a nearby sphere, the growing awareness that Earth is not safely isolated from whatever lies beyond makes many of our contemporaries uneasy. Thus today's predominant feelings about spaceships are ambivalent. Nevertheless, if an impulse toward belief that we are not alone in the universe is indeed an innate characteristic of human beings, as the past spread of belief in inhabited exoplanets suggests, we can be sure that those who follow us will not turn back from becoming spacefarers.
Getting at Jesus
Getting at Jesus - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Getting at Jesus write by Peter S. Williams. This book was released on 2019-01-29. Getting at Jesus available in PDF, EPUB and Kindle. Portraying themselves as challenging blind religious dogma with evidence-led skepticism, the neo-atheist movement claims that the New Testament contains unreliable tales about a mythical figure who, far from being the resurrected Lord of life, may not even have lived. This comprehensive critique documents the falsehood of these neo-atheist claims, correcting their historical and philosophical mistakes to show how we can get at the truth about the historical Jesus.
21st Century Guidebook to Fungi
21st Century Guidebook to Fungi - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook 21st Century Guidebook to Fungi write by David Moore. This book was released on 2020-05-08. 21st Century Guidebook to Fungi available in PDF, EPUB and Kindle. The mysterious world of fungi is once again unearthed in this expansive second edition. This textbook provides readers with an all-embracing view of the kingdom fungi, ranging in scope from ecology and evolution, diversity and taxonomy, cell biology and biochemistry, to genetics and genomics, biotechnology and bioinformatics. Adopting a unique systems biology approach - and using explanatory figures and colour illustrations - the authors emphasise the diverse interactions between fungi and other organisms. They outline how recent advances in molecular techniques and computational biology have fundamentally changed our understanding of fungal biology, and have updated chapters and references throughout the book in light of this. This is a fascinating and accessible guide, which will appeal to a broad readership - from aspiring mycologists at undergraduate and graduate level to those studying related disciplines. Online resources are hosted on a complementary website.
