Titres dans Sciences et mathématiques

When Newton discovered the law of gravity, he unified the rules governing the heavens and the Earth. Since then, physicists have been placing new forces into ever-grander theories. But perhaps the ultimate challenge is achieving a monumental synthesis of the two remaining theories—relativity and the quantum theory. This would be the crowning achievement of science, a profound merging of all the forces of nature into one beautiful, magnificent equation to unlock the deepest mysteries in science: What happened before the Big Bang?

Want to know how AT&T's Bell Labs developed semiconductor technology - and how its leading scientists almost came to blows in the process? Want to understand how radio and television work - and why RCA drove their inventors to financial ruin and early graves? Conquering the Electron offers these stories and more, presenting each revolutionary technological advance right alongside blow-by-blow personal battles that all too often took place.

On a winter night in 1997, a British Columbia timber scout named Grant Hadwin committed an act of shocking violence in the mythic Queen Charlotte Islands. His victim was legendary: a unique 300-year-old Sitka spruce tree, fifty metres tall and covered with luminous golden needles.

In The Molecule of More: How a Single Chemical in Your Brain Drives Love, Sex, and Creativity—and will Determine the Fate of the Human Race, George Washington University professor and psychiatrist Daniel Z. Lieberman, MD, and Georgetown University lecturer Michael E. Long present a potentially life-changing proposal: Much of human life has an unconsidered component that explains an array of behaviors previously thought to be unrelated, including why winners cheat, why geniuses often suffer with mental illness, why nearly all diets fail, and more.

What sparks the flash of brilliance? How does groundbreaking innovation happen? Answering in his infectious, culturally omnivorous style, using his fluency in fields from neurobiology to popular culture, Johnson provides the complete, exciting, and encouraging story of how we generate the ideas that push our careers, our lives, our society, and our culture forward.

A fascinating tour of creatures from the surface to the deepest ocean floor: How Far the Light Reaches invites us to envision wilder, grander, and more abundant possibilities for the way we live. Conservation journalist Sabrina Imbler discovers that some of the most radical models of family, community, and care can be found in the sea, from gelatinous chains that are both individual organisms and colonies of clones to deep-sea crabs that have no need for the sun, nourished instead by the chemicals and heat throbbing from the core of the Earth.

James Herriot brings back familiar and much-loved friends, including his partner Siegfried and his most lucrative patient, the delightful Tricki Woo. There are some some new arrivals too, such as the abandoned and terrified mongrol Titch who finds the perfect home with a gruff grocer and feral kittens Olly and Ginny who live in James and wife Helen's back garden. Above all, the veterinary practise in Darrowby is enlivened by a marvelouslly eccentric assistant, Calum Buchanan, who arrives with a pet badger and proceeds to add dogs, owls and a monkey called Mortimer to his growing menagerie.

Bullying and abuse are at the source of much misery in our lives. Because we are not taught about our brains, let alone how much they are impacted by bullying and abuse, we do not have a way to avoid this misery, heal our scars, or restore our health. In The Bullied Brain, listeners learn about the evidence doctors, psychiatrists, neuropsychologists and neuroscientists have gathered, that shows the harm done by bullying and abuse to your brain, and how you can be empowered to protect yourself and all others.

Imagine a world without bees, butterflies, and flowering plants. That was Earth 125 million years ago. Turn back the clock 400 million years, and there were no trees. At 450 million years in the past, even the earliest insects had not yet developed. And looking back 500 million years, the land was devoid of life, which at that time flourished in a profusion of strange forms in the oceans. These and other major turning points are the amazing story of evolution.

Through immersive and intimate reporting, When the Heavens Went on Sale reveals the spectacular chaos of the new business of space, and what happens when the idealistic, ambitious minds of Silicon Valley turn their unbridled vision toward the limitless expanse of the stars. This is the tale of technology’s most pressing and controversial revolution, as told through fascinating characters chasing unimaginable stakes in the race to space.

David Starr Jordan was a taxonomist, a man possessed with bringing order to the natural world. In time, he would be credited with discovering nearly a fifth of the fish known to humans in his day. When his specimen collections were demolished by lightning, by fire, and eventually by the 1906 San Francisco earthquake, many might have given up, given in to despair. But Jordan? He surveyed the wreckage at his feet, found the first fish that he recognized, and confidently began to rebuild his collection. And this time, he introduced one clever innovation.

Sitting can wreak havoc on your health, and not just in the form of minor aches and pains. Recent studies show that too much sitting contributes to a host of diseases—from obesity and diabetes to cancer and depression. The typical seated office worker suffers from more musculoskeletal injuries than those workers who do daily manual labor. It turns out that sitting is as much an occupational risk as is lifting heavy weights on the job. The facts are in: sitting literally shortens your life. Your chair is your enemy, and it is murdering your body.

Astrophysicist Neil deGrasse Tyson has attracted one of the world’s largest online followings with his fascinating, widely accessible insights into science and our universe. Now, Tyson invites us to go behind the scenes of his public fame by unveiling his candid correspondence with people across the globe who have sought him out in search of answers. In this hand-picked collection of 100 letters, Tyson draws upon cosmic perspectives to address a vast array of questions about science, faith, philosophy, life, and of course, Pluto.

Epigenetics can potentially revolutionize our understanding of the structure and behavior of biological life on Earth. It explains why mapping an organism's genetic code is not enough to determine how it develops or acts and shows how nurture combines with nature to engineer biological diversity. Surveying the 20-year history of the field while also highlighting its latest findings and innovations, this volume provides a readily understandable introduction to the foundations of epigenetics.

Stephen Hawking not only unraveled some of the universe's greatest mysteries but also believed science plays a critical role in fixing problems here on Earth. Now, as we face immense challenges on our planet - including climate change, the threat of nuclear war, and the development of artificial intelligence - he turns his attention to the most urgent issues facing us. Will humanity survive? Should we colonize space? Does God exist? These are just a few of the questions Hawking addresses in this wide-ranging, passionately argued final book from one of the greatest minds in history.

How does the brain generate a conscious thought? And why does so much of our knowledge remain unconscious? Thanks to clever psychological and brain-imaging experiments, scientists are closer to cracking this mystery than ever before. In this lively book, Stanislas Dehaene describes the pioneering work his lab and the labs of other cognitive neuroscientists worldwide have accomplished in defining, testing, and explaining the brain events behind a conscious state.

Light of the Mind, Light of the World tells a daring new story about how we got here, and how we can chart a better path forward. Surveying the history of science and faith from the astronomers of Babylon to the quantum physicists of postwar Europe and America, classicist and scholar Spencer A. Klavan argues that science itself is leading us not away from God but back to him, and to the ancient faith that places the human soul at the center of the universe.

Einstein’s Fridge tells the incredible epic story of the scientists who, over two centuries, harnessed the power of heat and ice and formulated a theory essential to comprehending our universe. “Although thermodynamics has been studied for hundreds of years…few nonscientists appreciate how its principles have shaped the modern world” (Scientific American).

The New York Times best-selling author traces the development of technology from the Industrial Age to the Digital Age to explore the single component crucial to advancement - precision - in a superb history that is both an homage and a warning for our future.

Although the development of nuclear weapons by different countries was one of the reasons why extraterrestrial civilizations began visiting Earth in the World War II era, a more significant and far-reaching explanation exists. However, the truth was not shared for decades due to its disturbing nature. Only today do we know the whole truth. The Earth had become the epicenter of a temporal war involving a future galactic tyranny whose origins lay in a secret agreement reached by Nazi Germany with a group of extraterrestrials called Draco Reptilians.