From the months each of us spent suspended in the womb anticipating birth to the moments when we wait for sleep to transport us to other realities, we are always aware of gravity. In On Gravity, physicist A. Zee combines profound depth with incisive accessibility to take us on an original and compelling tour of Einstein's general theory of relativity.Inspired by Einstein's audacious suggestion that spacetime could ripple, Zee begins with the stunning discovery of gravity waves. He goes on to explain how gravity can be understood in comparison to other classical field theories, presents the idea of curved spacetime and the action principle, and explores cutting-edge topics, including black holes and Hawking radiation. Zee travels as far as the theory reaches, leaving us with tantalizing hints of the utterly unknown, from the intransigence of quantum gravity to the mysteries of dark matter and energy.Concise and precise, and infused with Zee's signature warmth and freshness of style, On Gravity opens a unique pathway to comprehending relativity and gaining deep insight into gravity, spacetime, and the workings of the universe.

    "A masterpiece of science."—Werner von Braun.

    Joe – as he is affectionately known to millions of readers, listeners, viewers, and students – brings his magic formula to Doubleday Canada with Brain Fuel.As with Dr. Joe’s previous best-selling books, Brain Fuel informs and entertains on a wild assortment of science-based topics. But this is not "science trivia." If you are looking for serious scientific discussions, you’ll find them here. If you are looking for practical consumer information, that’s here too. If you are searching for ways to stimulate interest in science, look no further, Mom. And if you are simply wondering why the birth of Prince Leopold was so different from Queen Victoria's previous seven; or why an iron rod that went through a man's head is now on display in a museum in Boston; or why white chocolate has such a short shelf life; or why eggs terrified Alfred Hitchcock – and what all of this means for the rest of us, and why – then bingo.

    Used by hundreds of thousands of students over ten editions, its learning-goals-driven learning system provides a clearer understanding of the content. The fully revised eleventh edition reinforces the highly contemporary tone and focus by featuring hundreds of new citations, including material from chapters from the sixth edition of the " Handbook of Child Psychology ."

    Led by Brazilian guide Diogo and a contingent of mercenaries, the husband and wife team trek into the jungle to investigate.The trail of dead monkeys leads deep into the rainforest and the group fractures when Mic describes seeing a fifteen-foot spinosaurus prowling the forest. Despite the defections of their guide and two guards, the scientists track the dinosaur in search of answers.The horrors they discover quickly turn their mission to one of survival as the team fights monsters of the past… and the unknown.

    Although it has a long history, the recent discovery (1992) of the body's widespread endocannabinoid system (ECS) has thrust cannabis back into the limelight again as a viable medicine. In 2012 over 2.5 million prescriptions were written for medical marijuana in the United States. CBD and THC are both cannabinoids found in cannabis. However, while THC produces a “high” in the user, CBD does not. And now legal CBD-rich hemp oil is available over-the-counter in all 50 states, without a prescription. It was discovered that the Hemp Family of plants (cannabis, marijuana) is loaded with cannabinoids that stimulate our ECS receptor sites. These sites are found in the brain, organs, glands, connective tissue and immune cells and plays regulatory roles in many physiological processes including appetite, pain-sensation, mood and memory. The primary purpose of this system revolves around maintaining balance in the body. Cannabinoids found in all varieties of cannabis work in harmony with the cannabinoids we naturally produce when our system is functioning properly. It is now coming to light that we may very well be “Endocannabinoid Deficient” and supplementing with Cannabidiol, known as CBD, may provide just what we’re missing to restore optimum health. The health benefits of cannabidiol (CBD) from natural hemp oil is this book's primary focus. It explores the similarities, differences, uses and benefits of hemp, cannabis and medical marijuana along with the interplay of THC and CBD. Their 480 other components are also discussed, such as terpenoids, flavonoids, enzymes, vitamins, etc. Make no mistake about it, the endocannabinoid system, although newly discovered, is just as important as any other bodily system, like the muscular, cardiac, circulatory or digestive system. The ECS requires its own specialized medicine as found in the Hemp Family of plants, which is also known as cannabis, and which includes all strains of marijuana. Here is a list of conditions known and/or being researched that may be helped by cannabinoid therapeutics and supplementation: Acne ADD/ADHD Addiction AIDS ALS (Lou Gehrig's Disease) Alzheimer’s Anorexia Antibiotic Resistance Anxiety Atherosclerosis Arthritis Asthma Autism Bipolar Cancer Colitis/Crohn’s Depression Diabetes Endocrine Disorders Epilepsy/Seizure Fibromyalgia Glaucoma Heart Disease Huntington’s Inflammation Irritable Bowel Kidney Disease Liver Disease Metabolic Syndrome Migraine Mood Disorders Motion Sickness Multiple Sclerosis Nausea Neurodegeneration Neuropathic Pain Obesity OCD Osteoporosis Parkinson’s Prion/Mad Cow Disease PTSD Rheumatism Schizophrenia Sickle Cell Anemia Skin Conditions Sleep Disorders Spinal Cord Injury Stress Stroke/TBI 10% of the proceeds from sales of this book will be donated to the American Cannabis Nurses Association in an effort to bring together nurses, to share, integrate and one day certify nurses in the science of endocannabinoid therapeutics in nursing practice.

    It has been developed specifically for emerging courses in astrobiology, though it can also be used for introductory astronomy.

    With a foreword by ESA astronaut Tim Peake.Started at the Royal Institution (RI) in 1825 by Michael Faraday, the Christmas Lectures have been broadcast on television since the 1960s and have formed part of the British Christmas tradition for generations. First devised to attract young people to the magic of science through spectacular demonstrations, they are now watched by millions of people around the world every year.Drawing on the incredible archive at the RI, which is packed full of handwritten notebooks, photographs and transcripts, this book will focus on thirteen of the most captivating Lectures given at the RI on space and time, taking a look at what we thought we knew then and what has been discovered since.

    Alvarez had the first glimmer of that amazing insight when he noticed something odd in a rock outcrop in central Italy. Alvarez now returns to that rich terrain, this time to take the reader on an excavation of the Earth's distant past. We encounter the volcanoes that formed the Seven Hills of Rome; the majestic limestone Apennine mountains that started to develop millions of years ago under water; the evidence that the Mediterranean Sea completely evaporated to a sunken desert, perhaps several times; and the proof that continental plates once overran one another to form the Alps. In Alvarez's telling, all major geologic episodes are as dramatic as the great impact that killed the dinosaurs, even when they happen over eons and without huge creatures to witness them.

    Cameron Webb’s brief but biting assault on the wide spectrum of religiosity that dominates 21st century America, from the hateful and anti-intellectual dogma of the Christian Right to the whitewashed progressivism of religious moderates. It is also a fascinating and humbling journey into the heart of the universe's most mind-numbing wonders.Drawing on recent insights from cosmology and evolution, Despicable Meme paints a vivid portrait of a cosmos unlike anything ever imagined by the provincial, human-centered faiths of the past – a universe of countless worlds spread across unfathomable distances and times, and where, on at least one of those worlds, the slow march of time would combine with the purposeless mechanisms of chemistry and physics to create a being capable of believing that he alone is the reason for it all.With piercing intelligence and candor, Despicable Meme exposes the folly of that conceit and dispenses with the widespread but utterly improbable notion of a personal creator. But it saves its harshest criticism for the vapid accommodationism of religious liberals, those who unknowingly or uncaringly give cover to the misogynistic, racist, homophobic paranoia of the fanatics by refusing to condemn, or quietly tolerating, the outlandish and immoral doctrines that lie festering at the center of their own “moderate” faiths.Despicable Meme is not only a blistering condemnation of radical fundamentalism, it is an impassioned appeal to the rest of us to once and for all abandon the superstitions of the religion we were raised in and embrace the beauty of an endlessly wondrous, but godless, universe.Show less

    Because of his studies of the Eskimos, his discoveries of land, the application of new ideas and new methods of exploration, Stefansson was considered the foremost polar explorer of his day, and one of the few great explorers of all time. During a period of three or four years Mr. Stefansson has produced a creditable list of books about the Arctic. In some respects his service in publishing the results of his Northern studies has differed from that of earlier explorers. He has challenged our preconceptions about the Arctic. “Hunters of the Great North” gives details of Northern life such as have doubtless come within the experience of all Arctic explorers, but which are new to the average American reader. In short, it is an elementary text-book of the Arctic. Stefansson lived among the Eskimos of the Mackenzie River, studying their language and adopting their mode of life, and spending ten winters and thirteen summers in the polar regions. Among Stefannson's most famous discovery was that of a race of blond Eskimo on Coronation Gulf. Stefansson writes: "In the present book I have tried by means of diaries and memory to go back to the vivid impressions of my first year among the Eskimos for the story of what I saw and heard." In describing his confrontation with a polar bear, Stefansson writes: “I heard behind me a noise like the spitting of a cat or the hiss of a goose. I looked back and saw, about twenty feet away and almost above me, a polar bear. I had overestimated the bear's distance from shore, and had passed the spot where he lay. From his eye and attitude, as well as the story his trail told afterward there was no doubting his intentions: the hiss was merely his way of saying, "Watch me do it!" Or at least that is how I interpreted it; possibly the motive was chivalry, and the hiss was his way of saying Garde!” Contents I. PREPARATIONS FOR A LIFEWORK OF EXPLORATION II. DOWN THE MACKENZIE RIVER THROUGH 2000 MILES OF INDIAN COUNTRY III. FIRST IMPRESSIONS OF THE ESKIMOS IV. CAPTAIN KLINKENBERG—SEA WOLF AND DISCOVERER V. THE WHALING FLEET SAILS AWAY VI. LEARNING TO LIVE AS AN ESKIMO—ON A DIET OF FISH WITHOUT SALT VII. HOW AN ESKIMO SAILED THROUGH THE STORM VIII. AN AUTUMN JOURNEY THROUGH ARCTIC MOUNTAINS IX. THE SUN GOES AWAY FOR THE WINTER X. LOST IN THE MACKENZIE DELTA XI. AN ARCTIC CHRISTMAS WITH AN ENGLISH COUNTRY GENTLEMAN XII. THE LIFE AT TUKTUYAKTOK XIII. LEARNING TO BUILD A SNOWHOUSE AND TO BE COMFORTABLE IN ONE XIV. TRAVELS AFTER THE SUN CAME BACK XV. WE GO IN SEARCH OF OUR OWN EXPEDITION XVI. A SPRING JOURNEY IN AN ESKIMO SKIN BOAT XVII. A RACE OVER THE ARCTIC MOUNTAINS IN SUMMER XVIII. ON A RAFT DOWN THE PORCUPINE RIVER SHORT STORIES OF ADVENTURE I. HOW I LEARNED TO HUNT CARIBOU II. HOW I LEARNED TO HUNT SEALS III. HOW WE HUNT POLAR BEARS

    A riveting account of three heroic astronauts who took one of the most dangerous space flights ever, from the New York Times bestselling author of Shadow Divers. In early 1968, the Apollo program was on shaky footing. President Kennedy's end-of-decade deadline to put a man on the Moon was in jeopardy, and the Soviets were threatening to pull ahead in the space race. By August 1968, with its back against the wall, NASA decided to scrap its usual methodical approach and shoot for the heavens. With just four months to prepare--a fraction of the normal time--the agency would send the first men in history to the Moon. In a year of historic violence and discord--the Tet offensive, the assassinations of MLK and RFK, the Chicago DNC riots--the Apollo 8 mission was the boldest test of what America could do. With a focus on astronauts Frank Borman, Jim Lovell, and Bill Anders, and their wives and children, this is a vivid, gripping, you-are-there narrative that shows anew the epic danger involved, and the singular bravery it took, for man to leave Earth for the first time--and to arrive at a new world.

    Relive key moments in the monumental Hubble story, from launch through major new instrumentation to the promise of discoveries to come. With more than 150 photographs including Hubble All-Stars—the most famous of all the noteworthy images—The Hubble Cosmos shows how this telescope is revolutionizing our understanding of the universe.

    Google Hacking teaches people how to get the most out of this revolutionary search engine. Not only will this book teach readers how Google works, but it will also empower them with the necessary skills to make their everyday searches easier, more efficient, and more productive. Google Hacking also demonstrates how Google can be used for negative means. It's immense searching power, means that everyone, including cyber criminals, can feasibly access confidential data, such as company presentations, budgets, blueprints, even credit card numbers, with just the click of a mouse. Using numerous examples, case studies, and screenshots, this book explains the art of ethical Google Hacking -- it not only teaches readers how Google works, but it provides them with the knowledge they need to protect their data and systems from getting Google Hacked. This is the only book you need to maximize (and protect yourself) from Google searches!

    "A stunning memoir from the astronaut who spent a record-breaking year aboard the International Space Station – a candid account of his remarkable voyage, the journeys that preceded it, and his colorful formative years." Inside book cover comments.