In The Medea Hypothesis, renowned paleontologist Peter Ward proposes a revolutionary and provocative vision of life's relationship with the Earth's biosphere--one that has frightening implications for our future, yet also offers hope. Using the latest discoveries from the geological record, he argues that life might be its own worst enemy. This stands in stark contrast to James Lovelock's Gaia hypothesis--the idea that life sustains habitable conditions on Earth. In answer to Gaia, which draws on the idea of the "good mother" who nurtures life, Ward invokes Medea, the mythical mother who killed her own children. Could life by its very nature threaten its own existence? According to the Medea hypothesis, it does. Ward demonstrates that all but one of the mass extinctions that have struck Earth were caused by life itself. He looks at our planet's history in a new way, revealing an Earth that is witnessing an alarming decline of diversity and biomass--a decline brought on by life's own "biocidal" tendencies. And the Medea hypothesis applies not just to our planet--its dire prognosis extends to all potential life in the universe. Yet life on Earth doesn't have to be lethal. Ward shows why, but warns that our time is running out. Breathtaking in scope, The Medea Hypothesis is certain to arouse fierce debate and radically transform our worldview. It serves as an urgent challenge to all of us to think in new ways if we hope to save ourselves from ourselves.

The figure of Medea has inspired artists in all fields throughout the centuries. This work examines the major representations of Medea in myth, art, and ancient and contemporary literature, as well as the philosophical, psychological and cultural questions these portrayals raise.

The essential beginner's guide to string theory The Little Book of String Theory offers a short, accessible, and entertaining introduction to one of the most talked-about areas of physics today. String theory has been called the "theory of everything." It seeks to describe all the fundamental forces of nature. It encompasses gravity and quantum mechanics in one unifying theory. But it is unproven and fraught with controversy. After reading this book, you'll be able to draw your own conclusions about string theory. Steve Gubser begins by explaining Einstein's famous equation E = mc2, quantum mechanics, and black holes. He then gives readers a crash course in string theory and the core ideas behind it. In plain English and with a minimum of mathematics, Gubser covers strings, branes, string dualities, extra dimensions, curved spacetime, quantum fluctuations, symmetry, and supersymmetry. He describes efforts to link string theory to experimental physics and uses analogies that nonscientists can understand. How does Chopin's Fantasie-Impromptu relate to quantum mechanics? What would it be like to fall into a black hole? Why is dancing a waltz similar to contemplating a string duality? Find out in the pages of this book. The Little Book of String Theory is the essential, most up-to-date beginner's guide to this elegant, multidimensional field of physics.

'Here on Earth' is a revolutionary dual biography of the planet and of our species. Tim Flannery reimagines the history of Earth, from its earliest origins as a chaotic ball of elemental dust and gases to the teeming landscape we currently call home.

This book provides an accessible introduction for students and anyone interested in increasing their enjoyment of Greek tragic plays. Whether readers are studying Greek culture, performing a Greek tragedy, or simply interested in reading a Greek play, this book will help them to understand and enjoy this challenging and rewarding genre. An Introduction to Greek Tragedy provides background information, helps readers appreciate, enjoy and engage with the plays themselves, and gives them an idea of the important questions in current scholarship on tragedy. Ruth Scodel seeks to dispel misleading assumptions about tragedy, stressing how open the plays are to different interpretations and reactions. In addition to general background, the book also includes chapters on specific plays, both the most familiar titles and some lesser-known plays - Persians, Helen and Orestes - in order to convey the variety that the tragedies offer readers.

Gaia, in which James Lovelock puts forward his inspirational and controversial idea that the Earth functions as a single organism, with life influencing planetary processes to form a self-regulating system aiding its own survival, is now a classic work that continues to provoke heated scientific debate.

Darwinian life -- What is evolutionary "success"? -- Two hypotheses about the nature of life on earth -- Medean feedbacks and global processes -- Medean events in the history of life -- Humans as medeans -- Biomass through time as a test -- Predicted future trends of biomass -- Summation -- Environmental implications -- What must be done

The remarkable scientific story of how Earth became an oxygenated planet The air we breathe is twenty-one percent oxygen, an amount higher than on any other known world. While we may take our air for granted, Earth was not always an oxygenated planet. How did it become this way? Donald Canfield—one of the world's leading authorities on geochemistry, earth history, and the early oceans—covers this vast history, emphasizing its relationship to the evolution of life and the evolving chemistry of the Earth. Canfield guides readers through the various lines of scientific evidence, considers some of the wrong turns and dead ends along the way, and highlights the scientists and researchers who have made key discoveries in the field. Showing how Earth’s atmosphere developed over time, Oxygen takes readers on a remarkable journey through the history of the oxygenation of our planet.

Explores how animals are able to navigate around the world with accuracy.

The theme of Medea in Portuguese literature has mainly given rise to the writing of new plays on the subject. The central episode in the Portuguese rewritings in the last two centuries is the one that takes place in Corinth, i.e., the break between Medea and Jason, on the one hand, and Medea’s killing of their children in retaliation, on the other. Besides the complex play of feelings that provides this episode with very real human emotions, gender was a key issue in determining the interest that this story elicited in a society in search of social renovation, after profound political transformations – during the transition between dictatorship and democracy which happened in 1974 – that generated instability and established a requirement to find alternative rules of social intercourse in the path towards a new Portugal.