Their work has uncovered a number of the universe’s more surprising secrets, and many believe further wonders remain hidden within the theory’s tangle of equations, waiting to be exposed. In this sweeping narrative of science and culture, astrophysicist Pedro Ferreira brings general relativity to life through the story of the brilliant physicists, mathematicians, and astronomers who have taken up its challenge. For these scientists, the theory has been both a treasure trove and an enigma, fueling a century of intellectual struggle and triumph.. Einstein’s theory, which explains the relationships among gravity, space, and time, is possibly the most perfect intellectual achievement of modern physics, yet studying it has always been a controversial endeavor. Relativists were the target of persecution in Hitler’s Germany, hounded in Stalin’s Russia, and disdained in 1950s America. Even today, PhD students are warned that specializing in general relativity will make them unemployable. Despite these pitfalls, general relativity has flourished, delivering key insights into our understanding of the origin of time and the evolution of all the stars and galaxies in the cosmos. Its adherents have revealed what lies at the farthest reaches of the universe, shed light on the smallest scales of existence, and explained how the fabric of reality emerges. Dark matter, dark energy, black holes, and string theory are all progeny of Einstein’s theory. We are in the midst of a momentous transformation in modern physics. As scientists look farther and more clearly into space than ever before, The Perfect Theory reveals the greater relevance of general relativity, showing us where it started, where it has led, and where it can still take us.

    Lacking the ability to measure their longitude, sailors throughout the great ages of exploration had been literally lost at sea as soon as they lost sight of land. Thousands of lives, and the increasing fortunes of nations, hung on a resolution.The scientific establishment of Europe—from Galileo to Sir Issac Newton—had mapped the heavens in both hemispheres in its certain pursuit of a celestial answer. In stark contrast, one man, John Harrison, dared to imagine a mechanical solution—a clock that would keep precise time at sea, something no clock had ever been able to do on land. Longitude is a dramatic human story of an epic scientific quest and Harrison's forty-year obsession with building his perfect timekeeper, known today as the chronometer. Full of heroism and chicanery, it is also a fascinating brief history of astronomy, navigation, and clock-making, and opens a new window on our world.On its 10th anniversary, a gift edition of this classic book, with a forward by one of history's greatest explorers, and eight pages of color illustrations.

    Transmitted by body lice, it afflicts the dispossessed—refugees, soldiers, and ghettoized peoples—causing hallucinations, terrible headaches, boiling fever, and often death. The disease plagued the German army on the Eastern Front and left the Reich desperate for a vaccine. For this they turned to the brilliant and eccentric Polish zoologist Rudolf Weigl.In the 1920s, Weigl had created the first typhus vaccine using a method as bold as it was dangerous for its use of living human subjects. The astonishing success of Weigl’s techniques attracted the attention and admiration of the world—giving him cover during the Nazi’s violent occupation of Lviv. His lab soon flourished as a hotbed of resistance. Weigl hired otherwise doomed mathematicians, writers, doctors, and other thinkers, protecting them from atrocity. The team engaged in a sabotage campaign by sending illegal doses of the vaccine into the Polish ghettos while shipping gallons of the weakened serum to the Wehrmacht.Among the scientists saved by Weigl, who was a Christian, was a gifted Jewish immunologist named Ludwik Fleck. Condemned to Buchenwald and pressured to re-create the typhus vaccine under the direction of a sadistic Nazi doctor, Erwin Ding-Schuler, Fleck had to make an awful choice between his scientific ideals or the truth of his conscience. In risking his life to carry out a dramatic subterfuge to vaccinate the camp’s most endangered prisoners, Fleck performed an act of great heroism.Drawing on extensive research and interviews with survivors, Arthur Allen tells the harrowing story of two brave scientists—a Christian and a Jew— who put their expertise to the best possible use, at the highest personal danger.

    He examines the power of the arguments embedded in these speeches to inspire people to achieve great things, or do great harm. Abbott draws upon his political expertise to explain how our current understanding of the world is rooted in pivotal moments of history. These moments are captured in the words of a range of influential speakers including: Emmeline Pankhurst, Martin Luther King, Jr, Enoch Powell, Napoleon Beazley, Kevin Rudd, Alexander Solzhenitsyn, Ronald Reagan, George W. Bush, Osama bin Laden, Margaret Beckett, Winston Churchill, Salvador Allende, Margaret Thatcher, Tony Blair, Tim Collins, Mohandas Gandhi, Dwight D. Eisenhower, Robin Cook and Barack Obama. The speeches in this book are arranged thematically, linked by concepts such as 'might is right', 'with us or against us' and 'give peace a chance'. Each transcript is accompanied by an insightful commentary that analyses how the words relate to our modern society. Fresh and relevant, this is a book that will make you stop in your tracks and think about what is really happening in the world today.

     During fourteen years, from 1955 to 1969, the Soviet Union and the United States of America were engaged in a dramatic race against each other to conquer space. This period encompassed dramatic victories, humbling defeats, and more than one tragedy. This is a story of human courage and ingenuity at its best and political maneuvering at its worst, of almost unbelievable technological progress undertaken with the object not just of advancing human knowledge but also of proving the superiority of one country over another. Inside you will read about... ✓ From Missiles to Rockets ✓ Russia Takes the Lead ✓ Early American Failures ✓ The First Men in Space ✓ Fatalities on Both Sides ✓ The Moon Landing And much more! The space race culminated in man setting foot upon the moon, but each milestone on the way to that final goal was bitterly contested. Two powerful nations pledged a substantial part of their national resources to beat the other in a scientific and technological race to be the first to achieve new records. In terms of contests between major powers, there has never been anything quite as dramatic, public, and sustained as the space race; it remains one of the most fascinating and engaging episodes of the Cold War.

    Putting people into places and situations unprecedented in history is stirred the imagination while the human experience was expanding and redefining. Yet, space exploration compels humans to confront a hostile environment of cosmic radiations, radical changes in the gravity and magnetic fields, as well as social isolation. Therefore, any space traveller is submitted to relevant health-related threats. In the twenty-first century, human space flight is poised to continue, but it will enjoy the ongoing developments in science and technology. It will become more networked, more global, and more oriented toward primary goals. A novel international human space flight policy could help achieve these objectives by clarifying the rationale, the ethics of acceptable risk, the role of remote presence, and the need for balance between funding and ambition to justify the risk of human lives. In order to address such a challenge, a preliminary careful survey of the available scientific data is mandatory to set forth adequate countermeasures. Envisaged solutions should provide a sound and technically feasible approach for counteracting microgravity and cosmic rays effects, which represent the main health risk for space crews. This objective must necessarily be sustained by national/international space agencies, which would coordinate their common efforts into a defined international spaceflight program.

    Planetary science has mainly been a descriptive science, but it is becoming increasingly experimental. The space probes that went up between the 1960s and 1990s were primarily generalists-they collected massive amounts of information so that scientists could learn what questions to pursue. But recent missions have become more focused: Scientists know better what information they want and how to collect it. Even now probes are on their way to Mercury, Venus, Mars, and Pluto, with Europa-one of Jupiter's moons-on the agenda. In a sweeping look into the manifold objects inhabiting the depths of space, Lives of the Planets delves into the mythology and the knowledge humanity has built over the ages. Placing our current understanding in historical context, Richard Corfield explores the seismic shifts in planetary astronomy and probes why we must change our perspective of our place in the universe. In our era of extraordinary discovery, this is the first comprehensive survey of this new understanding and the history of how we got here.

    But Neil Armstrong and Sally Ride would have never made history, and humankind would not have touched the stars, if not for the men and women on the ground who lit the fuse that launched the first rockets.Enthralled as a boy by the exploits of Flash Gordon and the novels of Robert Heinlein and Arthur C. Clarke—who put the science in science fiction—James French became one of the original unsung engineers of America’s groundbreaking space program. His fascinating memoir offers an up-close-and-technical look at building, testing, and perfecting the pioneering Saturn rockets and original lunar landing module, and he shares true tales, both humorous and harrowing, of life—and near death—on the front lines of scientific exploration.If you’ve ever said, “It’s not rocket science,” you’re right. It’s rocket engineering—and here’s your chance to marvel at how it changed the world and made it possible to explore all that lies beyond Earth. James R French graduated from MIT in 1958 with a degree of BSME Specializing in Propulsion. His first job was with Rocketdyne Division of North American Aviation where he worked on developmental testing of H-1 engines and combustion devices hardware for F-1 and J-2 engines used in Saturn 5. Mr. French has also worked at TRW Systems, where he was Lead Development Test Engineer on the Lunar Module Descent Engine, and Jet Propulsion Laboratory where he was Advanced Planetary studies Manager as well as Chief Engineer for the SP-100 Space Nuclear Power System and worked on Mariners 5, 6, 7, 8, and 9; Viking 1 & 2 and Voyager 1 & 2. . In 1986, he helped found American Rocket Co., a commercial launch company.Since 1987, Mr. French has been consultant to a variety of aerospace companies, SDIO, NASA, and USAF. He has participated in various startup companies in the private space flight arena and currently consults extensively to Blue Origin. Mr. French is co-author with Dr. Michael Griffin of the best-selling text Space Vehicle Design, published by AIAA. The second edition of the book has received the Summerfield Book Award for 2008. Mr. French is a Fellow of both AIAA and the British Interplanetary Society and a 50+ year member of AIAA. He has held several Technical Committee and other posts in AIAA. Cover design by Evan Twohy

    Yet the mathematical language of symmetry-known as group theory-did not emerge from the study of symmetry at all, but from an equation that couldn't be solved. For thousands of years mathematicians solved progressively more difficult algebraic equations, until they encountered the quintic equation, which resisted solution for three centuries. Working independently, two great prodigies ultimately proved that the quintic cannot be solved by a simple formula. These geniuses, a Norwegian named Niels Henrik Abel and a romantic Frenchman named Évariste Galois, both died tragically young. Their incredible labor, however, produced the origins of group theory. The first extensive, popular account of the mathematics of symmetry and order, The Equation That Couldn't Be Solved is told not through abstract formulas but in a beautifully written and dramatic account of the lives and work of some of the greatest and most intriguing mathematicians in history.

    The year 2000 is alternatively the year 2544 (Buddhist), 6236 (Ancient Egyptian), 5761 (Jewish) or simply the Year of the Dragon (Chinese). The story of the creation of the Western calendar, which is related in this book, is a story of emperors and popes, mathematicians and monks, and the growth of scientific calculation to the point where, bizarrely, our measurement of time by atomic pulses is now more accurate than time itself: the Earth is an elderly lady and slightly eccentric - she loses half a second a century. Days have been invented (Julius Caesar needed an extra 80 days in 46BC), lost (Pope Gregory XIII ditched ten days in 1582) and moved (because Julius Caesar had 31 in his month, Augustus determined that he should have the same, so he pinched one from February).

    With his trademark clarity and humor, Holt probes the mysteries of quantum mechanics, the quest for the foundations of mathematics, and the nature of logic and truth. Along the way, he offers intimate biographical sketches of celebrated and neglected thinkers, from the physicist Emmy Noether to the computing pioneer Alan Turing and the discoverer of fractals, Benoit Mandelbrot. Holt offers a painless and playful introduction to many of our most beautiful but least understood ideas, from Einsteinian relativity to string theory, and also invites us to consider why the greatest logician of the twentieth century believed the U.S. Constitution contained a terrible contradiction--and whether the universe truly has a future.

    He was one of the leading pioneers of the greatest revolution in twentieth-century science: quantum mechanics. The youngest theoretician ever to win the Nobel Prize for Physics, he was also pathologically reticent, strangely literal-minded and legendarily unable to communicate or empathize. Through his greatest period of productivity, his postcards home contained only remarks about the weather.Based on a previously undiscovered archive of family papers, Graham Farmelo celebrates Dirac's massive scientific achievement while drawing a compassionate portrait of his life and work. Farmelo shows a man who, while hopelessly socially inept, could manage to love and sustain close friendship.The Strangest Man is an extraordinary and moving human story, as well as a study of one of the most exciting times in scientific history.'A wonderful book . . . Moving, sometimes comic, sometimes infinitely sad, and goes to the roots of what we mean by truth in science.' Lord Waldegrave, Daily Telegraph

    WHO WAS THOMAS PAINE?Thomas Paine is known as one of the Fathers of the American Revolution. His landmark work, ‘Common Sense’, is known as the major inspiration for the ‘Declaration of Independence’, and his ‘Crisis’ pamphlet series was a favourite of George Washington to read out loud to inspire his troops at Valley Forge.Paine’s work is passionate, radical, yet accessible; covering his strong beliefs in Independence, Personal Liberty, Politics, Religion and Government. Hugely successful and inspiring strong polarisation in their times, they are still must-reads today, still highly debated and revered.THE 'MUST-HAVE' COMPLETE COLLECTIONIn this irresistible collection you get a full set of this amazing work.YOU GET:*COMMON SENSE - the famous work that inspired the American colonists with a demand and call for freedom from British rule. Also notable, that when adjusted for the population size of 1776, ‘Common Sense’ has the largest sales and circulation of any book in American history.*THE AMERICAN CRISIS - a series of pamphlets published from 1776 to 1783 written to motivate the Troops during the revolution, to spur them to victory. The language is powerful and emotional, and reflects Paine's liberal philosophies. The first lines are the famous: “These are times that try men’s souls.”*THE RIGHTS OF MAN (PART I and PART II) – a radical set of books that argues that political revolution is required when a government does not safeguard its people.*THE AGE OF REASON (PART I and PART II) - a deistic work, about institutionalized religion, and Paine’s strong views concerning it.*LETTERS and MISCELLANEOUS WRITINGS – A FULL SET of Paine’s must-read letters and assorted short works from Paine, Including his famous ‘LETTER TO GEORGE WASHINGTON’ and his last work ‘AGRAGIAN JUSTICE’YOUR FREE BONUSESIn addition, you get Free Special Bonuses:*THOMAS PAINE, BIOGRAPHY – A fascinating 10 page biography, detailing Paine’s unbelievable, often sad, and often controversial life. *Works presented as far as possible in original publication date order so you can follow Paine’s growth as a writer and philosopher*Easy TABLE OF CONTENTS so you can easily jump to any book, chapter or letter in the collection.YOUR NEW WINDOW INTO THOMAS PAINEImagine the wonder of having this fantastic, enviable collection, that rivals many libraries, right at your fingertips. Imagine the pleasure of discovering more about Paine’s one of a kind works.DON’T MISS OUT!As you read this, you understand why you want this edition, because it is the best, most complete Thomas Paine collection you can get. You want the most complete collection so don’t deny yourself! And don't accept other collections that are lacking. And available on the Kindle, this big collection is yours for next to nothing.

    Addressing readers with both a general and scholarly interest in mathematics, Nahin weaves into this narrative entertaining historical facts, mathematical discussions, and the application of complex numbers and functions to important problems.

    The Platonic-Pythagorean tradition looked on nature in geometric terms with the conviction that the cosmos was constructed according to the principles of mathematical order, while the mechanical philosophy conceived of nature as a huge machine and sought to explain the hidden mechanisms behind phenomena. Pursuing different goals, these two movements of thought tended to conflict with each other, and more than the obviously mathematical sciences were affected - the influence spread as far as chemistry and the life sciences. As this book demonstrates, the full fruition of the scientific revolution required a resolution of the tension between the two dominant trends.