The Finnish mathematician and astronomer Anders Johan Lexell (1740–1784) was a long-time close collaborator as well as the academic successor of Leonhard Euler at the Imperial Academy of Sciences in Saint Petersburg. Lexell was initially invited by Euler from his native town of Abo (Turku) in Finland to Saint Petersburg to assist in the mathematical processing of the astronomical data of the forthcoming transit of Venus of 1769. A few years later he became an ordinary member of the Academy. This is the first-ever full-length biography devoted to Lexell and his prolific scientific output. His rich correspondence especially from his grand tour to Germany, France and England reveals him as a lucid observer of the intellectual landscape of enlightened Europe. In the skies, a comet, a minor planet and a crater on the Moon named after Lexell also perpetuate his memory.

This book is the first to look at Lady Mary Wortley Montagu's achievement as a vital figure in the women's literary tradition. Robert Halsband's book on her life, the sixth this century and published in 1956, was the first to apply scholarly techniques to establishing the facts. The inaccurateaccounts given before Halsband testify to Lady Mary's compelling interest as a woman who wrote, travelled, campaigned publicly for medical advance, gossiped, and was involved in high-profile literary quarrels. Knowledge of her life has made considerable gains since Halsband, as understanding of theissues involved in trying to move between the roles of proper lady and woman writer has increased enormously. This life fruitfully exploits the tension between literary history and feminist reading. Isobel Grundy highlights Montagu's adolescent longing for literary fame, her growing understandingof the implications of this for gender and class imperatives, the frustrations and concessions involved in her collaborations with male writers, the punitive responses of society, the gaps at every stage of her life between her ascertainable circumstances and her construction of herself in lettersand other writings. The book situates those writings in relation to her own theorizing and her very wide reading in women's texts as well as men's. Finally, it looks at a range of contemporary and near-contemporary responses.

"I tremble when I recall the terrible appearance [the comet] had on Saturday evening in the clear sky, when it was observed by everybody with inexpressible astonishment. It seemed as though the heavens were burning, or as if the very air was on fire...[F]rom this little star stretched out such a wonderfully long tail that even an intellectual man was overcome with trembling; one's hair stood on end as this uncommon, terrible, and indescribable tail came into view...O wonderful almighty God! The heavens show thy might and the earth thy handiwork!" — Eyewitness account of a comet which appeared over Europe on December 24, 1680 The appearance of this comet caused so many panicked inquiries to be made of Pierre Bayle, one of the Enlightenment's greatest thinkers, that he decided to formally respond to them, hence the present work, which first appeared in 1682. The book's principle task was to undermine the influence of "superstition" in political life, and it was here that Bayle made the notorious suggestion, unique in the history of political thought until then, that a decent society of atheists is possible in principle. There is no other English translation of this book in print—the only other version was printed in 1708. This translation is based on a recently revised critical edition of the complete French text and includes a substantial interpretive essay that both elucidates the arguments of the work and indicates the importance of Bayle in the history of the modern Enlightenment.

Throughout the ages, comets, enigmatic and beautiful wandering objects that appear for weeks or months, have alternately fascinated and terrified humankind. The result of five years of careful research, Atlas of Great Comets is a generously illustrated reference on thirty of the greatest comets that have been witnessed and documented since the Middle Ages. Special attention is given to the cultural and scientific impact of each appearance, supported by a wealth of images, from woodcuts, engravings, historical paintings and artifacts, to a showcase of the best astronomical photos and images. Following the introduction, giving the broad historical context and a modern scientific interpretation, the Great Comets feature in chronological order. For each, there is a contemporary description of its appearance along with its scientific, cultural and historical significance. Whether you are an armchair astronomer or a seasoned comet-chaser, this spectacular reference deserves a place on your shelf.

One of Slate’s 10 Best Books of the Year Anthony Gottlieb’s landmark The Dream of Reason and its sequel challenge Bertrand Russell’s classic as the definitive history of Western philosophy. Western philosophy is now two and a half millennia old, but much of it came in just two staccato bursts, each lasting only about 150 years. In his landmark survey of Western philosophy from the Greeks to the Renaissance, The Dream of Reason, Anthony Gottlieb documented the first burst, which came in the Athens of Socrates, Plato, and Aristotle. Now, in his sequel, The Dream of Enlightenment, Gottlieb expertly navigates a second great explosion of thought, taking us to northern Europe in the wake of its wars of religion and the rise of Galilean science. In a relatively short period—from the early 1640s to the eve of the French Revolution—Descartes, Hobbes, Spinoza, Locke, Leibniz, and Hume all made their mark. The Dream of Enlightenment tells their story and that of the birth of modern philosophy. As Gottlieb explains, all these men were amateurs: none had much to do with any university. They tried to fathom the implications of the new science and of religious upheaval, which led them to question traditional teachings and attitudes. What does the advance of science entail for our understanding of ourselves and for our ideas of God? How should a government deal with religious diversity—and what, actually, is government for? Such questions remain our questions, which is why Descartes, Hobbes, and the others are still pondered today. Yet it is because we still want to hear them that we can easily get these philosophers wrong. It is tempting to think they speak our language and live in our world; but to understand them properly, we must step back into their shoes. Gottlieb puts readers in the minds of these frequently misinterpreted figures, elucidating the history of their times and the development of scientific ideas while engagingly explaining their arguments and assessing their legacy in lively prose. With chapters focusing on Descartes, Hobbes, Spinoza, Locke, Pierre Bayle, Leibniz, Hume, Rousseau, and Voltaire—and many walk-on parts—The Dream of Enlightenment creates a sweeping account of what the Enlightenment amounted to, and why we are still in its debt.

These past fifty years have seen incredible advances in mankind's scientific knowledge. We can now replace knees, hips, and other joints inside the human body, and we use robots to do critical parts of the surgeries. We are using retroviruses to actually rewrite the DNA within living patients, in order to make their bodies more effective in fighting diseases. We have seen subatomic particles, during their brief appearances, in our supercollider. We have captured images of the moment when two hydrogen nuclei fuse into one helium nucleus. We can speak to anyone in the world if they are in possession of a handheld cell phone. We have orbiting observatories that allow us to see galaxies that are over 13 billion lightyears away, and we have sent probes to other planets even landing one on a comet. With all this new knowledge, and much more, it's time to ask, has any of this information helped us to answer those age-old questions about the purpose of life, the existence of God, the origins of the universe, and our role within it all? In this book, the author emphatically answers yes! We now have enough scientific facts to answer most of those questions. And in a clear and easily readable way, he explains what we now know and how each of us can use these new insights, in order to improve our lives tremendously. This work in intended to improve your life. In fact, I am sure it will.

A magisterial history that recasts the Enlightenment as a period not solely consumed with rationale and reason, but rather as a pursuit of practical means to achieve greater human happiness. One of the formative periods of European and world history, the Enlightenment is the fountainhead of modern secular Western values: religious tolerance, freedom of thought, speech and the press, of rationality and evidence-based argument. Yet why, over three hundred years after it began, is the Enlightenment so profoundly misunderstood as controversial, the expression of soulless calculation? The answer may be that, to an extraordinary extent, we have accepted the account of the Enlightenment given by its conservative enemies: that enlightenment necessarily implied hostility to religion or support for an unfettered free market, or that this was “the best of all possible worlds”. Ritchie Robertson goes back into the “long eighteenth century,” from approximately 1680 to 1790, to reveal what this much-debated period was really about. Robertson returns to the era’s original texts to show that above all, the Enlightenment was really about increasing human happiness – in this world rather than the next – by promoting scientific inquiry and reasoned argument. In so doing Robertson chronicles the campaigns mounted by some Enlightened figures against evils like capital punishment, judicial torture, serfdom and witchcraft trials, featuring the experiences of major figures like Voltaire and Diderot alongside ordinary people who lived through this extraordinary moment. In answering the question 'What is Enlightenment?' in 1784, Kant famously urged men and women above all to “have the courage to use your own intellect”. Robertson shows how the thinkers of the Enlightenment did just that, seeking a well-rounded understanding of humanity in which reason was balanced with emotion and sensibility. Drawing on philosophy, theology, historiography and literature across the major western European languages, The Enlightenment is a master-class in big picture history about the foundational epoch of modern times.