The story of Stephen Hawking's relentless quest for the secret of the origins of the universe will change forever the way you look at the stars . . . and your place among them.

    Although Einstein understood that black holes were mathematical solutions to his equations, he never accepted their physical reality--a viewpoint many shared. This all changed in the 1960s and 1970s, when a deeper conceptual understanding of black holes developed just as new observations revealed the existence of quasars and X-ray binary star systems, whose mysterious properties could be explained by the presence of black holes. Black holes have since been the subject of intense research--and the physics governing how they behave and affect their surroundings is stranger and more mind-bending than any fiction.After introducing the basics of the special and general theories of relativity, this book describes black holes both as astrophysical objects and theoretical "laboratories" in which physicists can test their understanding of gravitational, quantum, and thermal physics. From Schwarzschild black holes to rotating and colliding black holes, and from gravitational radiation to Hawking radiation and information loss, Steven Gubser and Frans Pretorius use creative thought experiments and analogies to explain their subject accessibly. They also describe the decades-long quest to observe the universe in gravitational waves, which recently resulted in the LIGO observatories' detection of the distinctive gravitational wave "chirp" of two colliding black holes--the first direct observation of black holes' existence.The Little Book of Black Holes takes readers deep into the mysterious heart of the subject, offering rare clarity of insight into the physics that makes black holes simple yet destructive manifestations of geometric destiny.

    Most scientists didn't recognize the import of Hawking's claims, but Leonard Susskind and Gerard t'Hooft realized the threat, and responded with a counterattack that changed the course of physics.The Black Hole War is the thrilling story of their united effort to reconcile Hawking's revolutionary theories of black holes with their own sense of reality -- effort that would eventually result in Hawking admitting he was wrong, paying up, and Susskind and t'Hooft realizing that our world is a hologram projected from the outer boundaries of space.A brilliant book about modern physics, quantum mechanics, the fate of stars and the deep mysteries of black holes, Leonard Susskind's account of the Black Hole War is mind-bending and exhilarating reading.

    Bumper to Bumper is newer, longer, and better, touting mostly original stories that include the time Doug crashed his brand-new Porsche company car into a tree, the real story behind the time Doug crushed a Chrysler PT Cruiser, the time Doug bribed a government official in South Africa, the time Doug got detained at the Canadian border on an automotive press trip, and the story of Doug’s relationship with automakers. Also, Doug wrote this description himself in the third person.

    More than 770 basic phrases for everyday use enable you to communicate instantly on a host of topics: health and medical situations; essential services; boat, plane, and train travel; much more.

    And from the ancients who plotted its path at Stonehenge to the modern scientists who unraveled the nuclear fusion reaction that turns mass into energy, humankind has sought to solve its mysteries. In this lively biography of the sun, Bob Berman ranges from its stellar birth to its spectacular future death with a focus on the wondrous and enthralling, and on the heartbreaking sacrifice, laughable errors, egotistical battles, and brilliant inspirations of the people who have tried to understand its power. What, exactly, are the ghostly streaks of light astronauts see-but can't photograph-when they're in space? And why is it impossible for two people to see the exact same rainbow? Why are scientists beginning to think that the sun is safer than sunscreen? And how does the fluctuation of sunspots-and its heartbeat-affect everything from satellite communications to wheat production across the globe? Peppered with mind-blowing facts and memorable anecdotes about spectral curiosities-the recently-discovered "second sun" that lurks beneath the solar surface, the eerie majesty of a total solar eclipse-The Sun's Heartbeat offers a robust and entertaining narrative of how the Sun has shaped humanity and our understanding of the universe around us.

    Much of the trail is on the rocky ridgeline overlooking Lake Superior with sweeping vistas of Lake Superior and inland forests, cascading waterfalls and remote lakes. Mile-by-mile descriptions lead the casual hiker or ardent backpacker through forests of birch, maple, spruce, pine and fir—a region thriving with spectacular wildflowers and diverse wildlife. Whether you have two hours or two weeks, an afternoon or a weekend, this guide will enhance your hiking experience. Provided is detailed information on trailhead parking, 90+ backcountry campsites located every five to ten miles that require no fees, permits, or reservations, and a mile-by-mile description of the trail as you hike along. The Superior Hiking Trail goes to numerous scenic spots including Ely's Peak, Hawk Ridge, Bean and Bear Lakes, Mount Trudee, Baptism High Falls, Egge Lake, Sonju Lake, Manitou River, Caribou Falls, Cross River, Carlton Peak, Britton Peak, Oberg Mountain, Cascade River, and Pincushion Mountain. The trail travels through eight Minnesota state parks: Jay Cooke, Gooseberry Falls, Split Rock Lighthouse, Tettegouche, Crosby-Manitou, Temperance River, Cascade River, and Judge Magney. Complete trail maps are included in each section. In addition, it includes a "how-to" chapter on backpacking the trail and a chart with services in the towns close to the trail. It also includes informational chapters on wildflowers, birds, geology, and area history. The trail starts south of Duluth, MN in Jay Cooke State Park, travels through Duluth for 43 miles, and then heads northeast along the North Shore for 255 miles to Canada. Backpacking opportunities with backcountry campsites start at the northern boundary of Duluth. The Guide is written so each section of 5-12 miles can be hiked separately, a longer segment can be hiked, or the entire trail can be thru-hiked.

    Stars and other night sky objects can be seen with the naked eye, or seen in greater numbers and in more detail with binoculars or a telescope.Stargazing For Dummies offers you the chance to explore the night sky, providing a detailed guide to the main constellations and also offering advice on viewing other night sky objects such as planets and nebulae. It's a great introduction to a fun new hobby, and even provides a fun way to get the kids outside while doing something educational!Gives you an introduction to looking at the sky with binoculars or a telescope Offers advice on photographing the night sky Without needing to get your head around mind-bending theories, you can take part in some practical physics If you're looking for easy-to-follow guidance on getting to know the night sky, Stargazing For Dummies has you covered.