How the Earth Works takes you on an astonishing journey through time and space. In 48 lectures, you will look at what went into making our planet - from the big bang, to the formation of the solar system, to the subsequent evolution of Earth.

Chemistry and Our Universe: How It All Works is your in-depth introduction to this vital field, taught through 60 engaging half-hour lectures that are suitable for any background or none at all. Covering a year’s worth of introductory general chemistry at the college level, plus intriguing topics that are rarely discussed in the classroom, this amazingly comprehensive course requires nothing more advanced than high-school math. Your guide is Professor Ron B. Davis, Jr., a research chemist and award-winning teacher at Georgetown University.

We are in the midst of a global mental health crisis, and mental illnesses are on the rise. But what causes mental illness? And why are mental health problems so hard to treat? Drawing on decades of research, Harvard psychiatrist Dr. Chris Palmer outlines a revolutionary new understanding that for the first time unites our existing knowledge about mental illness within a single framework: mental disorders are metabolic disorders of the brain. Brain Energy will transform the field of mental health, and the lives of countless people around the world.

Richard Dawkins' brilliant reformulation of the theory of natural selection has the rare distinction of having provoked as much excitement and interest outside the scientific community as within it. His theories have helped change the whole nature of the study of social biology, and have forced thousands to rethink their beliefs about life.

Hilarious, fascinating, and a roller coaster of dizzying, historical what-ifs, Napoleon's Hemorrhoids is a potpourri for serious historians and casual history buffs. In one of Phil Mason's many revelations, you'll learn that Communist jets were two minutes away from opening fire on American planes during the Cuban missile crisis, when they had to turn back as they were running out of fuel. You'll discover that before the Battle of Waterloo, Napoleon's painful hemorrhoids prevented him from mounting his horse to survey the battlefield.

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.

Welcome to the Universe is a personal guided tour of the cosmos by three of today's leading astrophysicists. Inspired by the enormously popular introductory astronomy course that Neil deGrasse Tyson, Michael A. Strauss, and J. Richard Gott taught together at Princeton, this book covers it all - from planets, stars, and galaxies to black holes, wormholes, and time travel.

How do today's most successful tech companies - Amazon, Google, Facebook, Netflix, Tesla - design, develop, and deploy the products that have earned the love of literally billions of people around the world? Perhaps surprisingly, they do it very differently from the vast majority of tech companies. In Inspired, technology product management thought leader Marty Cagan provides listeners with a master class in how to structure and staff a vibrant and successful product organization and how to discover and deliver technology products that your customers will love.

Beginning with opium, the “joy plant,” which has been used for 10,000 years, Thomas Hager tells a captivating story of medicine. His subjects include the largely forgotten female pioneer who introduced smallpox inoculation to Britain, the infamous knockout drops, the first antibiotic, which saved countless lives, the first antipsychotic, which helped empty public mental hospitals, Viagra, statins, and the new frontier of monoclonal antibodies. This is a deep, wide-ranging, and wildly entertaining book.

In The Quantum Universe, Brian Cox and Jeff Forshaw approach the world of quantum mechanics in the same way they did in Why Does E=mc2? and make fundamental scientific principles accessible - and fascinating - to everyone.The subatomic realm has a reputation for weirdness, spawning any number of profound misunderstandings, journeys into Eastern mysticism, and woolly pronouncements on the interconnectedness of all things. Cox and Forshaw's contention? There is no need for quantum mechanics to be viewed this way.

More than a practical guide, Start Your Farm is a hopeful call to action for anyone who aspires to grow wholesome, environmentally sustainable food for a living. Take it from Forrest Pritchard and Ellen Polishuk: Making this dream a reality is not for the faint of heart, but it's well within reach - and there's no greater satisfaction under the sun.

To grow produce of the highest nutritional quality the essential minerals lacking in our soil must be replaced, but this re-mineralization calls for far more attention to detail than the simple addition of composted manure or NPK fertilizers. The Intelligent Gardener demystifies the process, while simultaneously debunking much of the false and misleading information perpetuated by both the conventional and organic agricultural movements. In doing so, it conclusively establishes the link between healthy soil, healthy food, and healthy people.

One fateful day in 1996, after discovering that five freight cars' worth of glittering corn have reaped a tiny profit of $18.16, young Forrest Pritchard vows to save his family's farm. What ensues-through hilarious encounters with all manner of livestock and colorful local characters-is a crash course in sustainable agriculture. Pritchard's biggest ally is his renegade father, who initially questions his son's career choice and rejects organic foods for sugary mainstream fare.

The restoration agriculture system described in this award-winning book works! It is possible for humans to produce staple foods using perennial agricultural ecosystems that actually improve the quality of the environment. This can be done on a backyard, farm, or ranch scale and is needed right now - on a global scale. Restoration Agriculture explains how we can have all of the benefits of natural, perennial ecosystems and create agricultural systems that imitate nature in form and function while still providing for our food, building, fuel, and many other needs.

Compact Farms is a guide for anyone dreaming of starting, expanding, or perfecting a profitable farming enterprise on five acres or less. The farm plans explain how to harness an area's water supply, orientation, and geography in order to maximize efficiency and productivity while minimizing effort. Profiles of well-known farmers such as Eliot Coleman and Jean-Martin Fortier show that farming on a small scale in any region, in both urban and rural settings, can provide enough income to turn the endeavor from hobby to career.