A scientist randomly discovers one of the most important findings of all the time. He shares his finding only with one of his old friends and shorty after that disappear. For a period of time nobody, even the scientist himself knows where he is or if he is kidnaped. After going through a series of events finally he realizes that he is no longer on Earth and is in another universe. In the new universe he finds out that his original universe is a baby universe in a bigger one which he names it the mother universe. In the mother universe, which has completely different physical, chemical and biological properties, he first find several living creatures from Earth and other solar systems in the Milky Way Galaxy, and later finds out about the real inhabitants of the mother universe. He stays in the mother universe for a period of time which is equal to sixteen years on Earth and finally request from the scientists in the mother universe to be returned to his own original home, the Earth. During his stay in the mother universe he finds new friends and learns many new scientific data. He realizes that the whole structure of the mother universe is different than his own original universe. The creatures in the mother universe are much more advanced than him. Since the two universes share space in certain parts and overlap, during his stay in the mother universe, in several occasions he and his new friends visit Earth, but cannot communicate with people on Earth, because they are in two different worlds with different laws of physics. Finally, in spite of extreme weak chance, the original inhabitants in the mother universe facilitate his return to Earth. After safe return to Earth he finds out that he has been considered as a dead person and he should prove his identity.

A Princeton astrophysicist explores whether journeying to the past or future is scientifically possible in this “intriguing” volume (Neil deGrasse Tyson). It was H. G. Wells who coined the term “time machine”—but the concept of time travel, both forward and backward, has always provoked fascination and yearning. It has mostly been dismissed as an impossibility in the world of physics; yet theories posited by Einstein, and advanced by scientists including Stephen Hawking and Kip Thorne, suggest that the phenomenon could actually occur. Building on these ideas, J. Richard Gott, a professor who has written on the subject for Scientific American, Time, and other publications, describes how travel to the future is not only possible but has already happened—and contemplates whether travel to the past is also conceivable. This look at the surprising facts behind the science fiction of time travel “deserves the attention of anyone wanting wider intellectual horizons” (Booklist). “Impressively clear language. Practical tips for chrononauts on their options for travel and the contingencies to prepare for make everything sound bizarrely plausible. Gott clearly enjoys his subject and his excitement and humor are contagious; this book is a delight to read.” —Publishers Weekly

This book includes numerous calculations for the many specific examples included within. I have included the many calculated examples to provide the reader with immediate justifications for the numerous concepts described. This was not done to belittle or talk down to the reader but rather to give the reader a clear sense of the plausibility for the propulsion methods and performance capabilities thereof. Interstellar travel at the many specific highly relativistic velocities contemplated in this bookand, in some cases, extreme vehicle massesis still a very controversial subject but nonetheless a highly mathematicalized and intelligible subject. My hope and intention is to thus clearly inspire and show the reader the plausibility of the concepts by providing the reader with proper evidence through his or her simple inspection of the formulas and values included in the computations. Some speculative physics is included, which is based on commonly presented theoretical constructs.

Presents the current understanding of the nature of time and space, and an approachable explanation of Einstein's theory of special relativity; then goes on to connect these to possible time travel along with the accompanying paradoxes involved.

In our passionate curiosity to unravel the mysteries of the world, life, and the universe, humans have contrived numerous theories, both scientific and religious, with each claiming more relevance than the last. Despite all of these influential postulates, however, the real truth remains obscured to us, as it likely will until the moment of our eventual extinction. In From the Big Bang to the Big Crunch and Everything in Between: A Simplified Look at a Not-So-Simple Universe, Dr. Vlad Van Rosenthal explores the subjects made complex by science and religion—those concerning our planet, our solar system, and our civilization. Van Rosenthal’s compelling and accessible style introduces us to the fundamental explanations of the origin and future of our universe and of human life. From the cataclysmic explosion at the beginning to the one at the end—either from asteroids colliding with the earth, the nuclear explosion of nearby stars, or the fatal swelling of our own sun—we are a unique species on an unique planet that has most likely seen numerous civilizations and will hopefully see many more. We are all invited to form and debate our own perspectives on the earth, time, and space, for we are truly beholden to no one’s mind but our own.

In 1921, five years after the appearance of his comprehensive paper on general relativity and twelve years before he left Europe permanently to join the Institute for Advanced Study, Albert Einstein visited Princeton University, where he delivered the Stafford Little Lectures for that year. These four lectures constituted an overview of his then-controversial theory of relativity. Princeton University Press made the lectures available under the title The Meaning of Relativity, the first book by Einstein to be produced by an American publisher. As subsequent editions were brought out by the Press, Einstein included new material amplifying the theory. A revised version of the appendix "Relativistic Theory of the Non-Symmetric Field," added to the posthumous edition of 1956, was Einstein's last scientific paper.