The fascinating story of an ancient riddle?and what it reveals about the nature of time and space
Three millennia ago, the Greek philosopher Zeno constructed a series of logical paradoxes to prove that motion is impossible. Today, these paradoxes remain on the cutting edge of our investigations into the fabric of space and time. "Zeno's Paradox" uses the motion paradox as a jumping-off point for an exploration of the twenty-five-hundred-year quest to uncover the true nature of the universe. From Galileo to Einstein to Stephen Hawking, some of the greatest minds in history have tackled the problem and made spectacular breakthroughs?but through it all, the paradox of motion remains.

Bored during Mass at the cathedral in Pisa, the seventeen-year-old Galileo regarded the chandelier swinging overhead-and remarked, to his great surprise, that the lamp took as many beats to complete an arc when hardly moving as when it was swinging widely. Galileo's Pendulum tells the story of what this observation meant, and of its profound consequences for science and technology. The principle of the pendulum's swing-a property called isochronism-marks a simple yet fundamental system in nature, one that ties the rhythm of time to the very existence of matter in the universe. Roger Newton sets the stage for Galileo's discovery with a look at biorhythms in living organisms and at early calendars and clocks-contrivances of nature and culture that, however adequate in their time, did not meet the precise requirements of seventeenth-century science and navigation. Galileo's Pendulum recounts the history of the newly evolving time pieces-from marine chronometers to atomic clocks-based on the pendulum as well as other mechanisms employing the same physical principles, and explains the Newtonian science underlying their function. The book ranges nimbly from the sciences of sound and light to the astonishing intersection of the pendulum's oscillations and quantum theory, resulting in new insight into the make-up of the material universe. Covering topics from the invention of time zones to Isaac Newton's equations of motion, from Pythagoras's theory of musical harmony to Michael Faraday's field theory and the development of quantum electrodynamics, Galileo's Pendulum is an authoritative and engaging tour through time of the most basic all-pervading system in the world.

In this fascinating book, the renowned astrophysicist J. Richard Gott leads time travel out of the world of H. G. Wells and into the realm of scientific possibility. Building on theories posited by Einstein and advanced by scientists such as Stephen Hawking and Kip Thorne, Gott explains how time travel can actually occur. He describes, with boundless enthusiasm and humor, how travel to the future is not only possible but has already happened, and he contemplates whether travel to the past is also conceivable. Notable not only for its extraordinary subject matter and scientific brilliance, Time Travel in Einstein’s Universe is a delightful and captivating exploration of the surprising facts behind the science fiction of time travel.

Estudios de los Mayas/La Nueva Edad "La lectura de este libro es una experiencia impactante y electrizante; cada pagina nos permite comprender perspicazmente los misterios mas profundos de la historia humana y de la evolucion de la consciencia mundial." --Michael E. Salla, Ph.D., Centro para la Paz Mundial El calendario profetico Maya no esta ajustado al movimiento de los cuerpos planetarios, mas bien funciona como un mapa metafisico de la evolucion de la consciencia y registra como fluye el tiempo espiritual, brindando una nueva ciencia del tiempo. El calendario esta asociado a nueve ciclos de creacion, cada uno de los cuales representa uno de los nueve niveles de consciencia o Submundo presentes en la piramide cosmica de los mayas. Al utilizar investigaciones empiricas, Carl Johan Calleman muestra como esta estructura piramidal del desarrollo de la consciencia puede explicar temas tan dispares como el origen comun de las religiones del mundo y el reclamo de nuestros dias de que parece que el tiempo se mueve mas rapido. Los lectores aprenderan que en realidad el tiempo se esta acelerando a medida que hacemos una transicion entre el materialista Submundo Planetario que nos rige hoy, hacia una frecuencia nueva y mas elevada de la consciencia --el Submundo Galactico---- lo cual nos prepara para el ultimo nivel universal de esclarecimiento de la consciencia. El Calendario Maya y la Transformacion de la Consciencia da a conocer el calendario Maya como un recurso espiritual que permite una comprension mayor de la naturaleza de la evolucion de la consciencia a traves de toda la historia humana, y como este brinda los pasos concretos que podemos tomar para alinearnos con este desarrollo haciael esclarecimiento. CARL JOHAN CALLEMAN posee un doctorado en biologia fisica y ha servido como experto en cancer a la Organizacion Mundial de la Salud (World Health Organization). En 1979 comenzo sus estudios sobre el calendario Maya y ahora imparte conferencias por todo el mundo; tambien es autor de Solving the Greatest Mystery of Our Time: The Mayan Calendar. Calleman vive en Suecia.

The untold story of the religious figures, philosophers, astronomers, geologists, physicists, and mathematicians who, for more than four hundred years, have pursued the answer to a fundamental question at the intersection of science and religion: When did the universe begin?

The moment of the universe's conception is one of science's Holy Grails, investigated by some of the most brilliant and inquisitive minds across the ages. Few were more committed than Bishop James Ussher, who lost his sight during the fifty years it took him to compose his Annals of all known history, now famous only for one date: 4004 b.c. Ussher's date for the creation of the world was spectacularly inaccurate, but that didn't stop it from being so widely accepted that it was printed in early twentieth-century Bibles. As writer and documentary filmmaker Martin Gorst vividly illustrates in this captivating, character-driven narrative, theology let Ussher down just as it had thwarted Theophilus of Antioch and many before him. Geology was next to fail the test of time. In the eighteenth century, naturalist Comte de Buffon, working out the rate at which the earth was supposed to have cooled, came up with an age of 74,832 years, even though he suspected this was far too low. Biology then had a go in the hands of fossil hunter Johann Scheuchzer, who alleged to have found a specimen of a man drowned at the time of Noah's flood. Regrettably it was only the imprint of a large salamander.

And so science inched forward via Darwinism, thermodynamics, radioactivity, and, most recently, the astronomers at the controls of the Hubble space telescope, who put the beginning of time at 13.4 billion years ago (give or take a billion). Taking the reader into the laboratories and salons of scholars and scientists, visionaries and eccentrics, Measuring Eternity is an engagingly written account of an epic, often quixotic quest, of how individuals who dedicated their lives to solving an enduring mystery advanced our knowledge of the universe.


From the Hardcover edition.

What is time? Is there a link between objective knowledge about time and subjective experience of time? And what is eternity? Does religion have the answer? Does science?Internationally known scholar Antje Jackelen investigates the problem and concept of time. Her study draws on her experiences in the Continental-European science and religion dialogue, with a particular focus on the German, Scandinavian, and Anglo-American dialogues. Her analysis of the subject includes: The notion of time and eternity as it is narrated through Christian hymn books stemming from Germany, Sweden, and the English-speaking world, with insights into changes of the concept and understanding of time in Christian spirituality over the past few decadesTheological approaches to time and eternity, as well as a look at Trinitarian theology and its relation to timeThe discussion of scientific theories of time, including Newtonian, relativistic, quantum, and chaos theoriesThe formulation of a "theology of time," a theological-mathematical model incorporating relational thinking oriented toward the future, the doctrine of trinity, and the notion of eschatology