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.

Some theoreticians contemplate and formulate the physics of tachyons, which are hypothetical particles, that would always travel faster than light but which could never slow down to the speed of light just as they anticipate sublight speed massive particles never being able to achieve light speed. So my theoretical work on the physics and kinematics of light-speed massive systems sets me apart from general trends in the theoretical field of relativistic astronautics. This book is a continuation of how and why we may be able to, at some future time, travel at the speed of light.

We have come of age in the solar system. We have sent probes throughout our planetary system and currently operate outbound probes well beyond the orbit of Pluto. These probes have had their genesis from within the ancient Chinese Empire in its bold experiments with black powder rockets during the first millennium AD and in the work of visionary giants such as Robert Goddard and Werner von Braun. A complete list of important contributors is to too large to include in this book. We are forever indebted to these intellectual pioneers. Last century, we mastered the mighty power of the atom to a high degree of proficiency. We have learned to harness a cosmic energy source in the development of the atom bomb. Although tensions between the United States and Russia have seen somewhat of the resurgence, the vestiges of the tensions between the East and the West have waned in the post-Cold War years. Thus, we can now freely put the atomic genie to use for our peaceful bidding for a grand exodus out into the eternal star spangled blackness of interstellar space. Where we will go from there is any science fiction buff's guess. However, nuclear energy directly or indirectly will likely be a key that unlocks the cosmic door.The realization of our first manned starships will involve an heroic global effort made all the more heroic to a degree commensurate with a bold courage to contemplate future possibilities in cosmic dreams of glory. The required engineering programs will be Herculean in scope, the spacecraft assembly meticulously clean and detailed, the national, or more likely, global funding efforts bolder than anything humanity has ever contemplated to date.Many disciplines will be brought together under the common goal of designing, assembling, and launching our first manned starships. Folks of all occupations and economic status will be required. When the final designs are finished, the assembly is accomplished, and the crew and passengers are selected, we will enter a bold new era of star flight. Such a global effort can usher in an era of peace and prosperity. This is my calling. This is your calling. This is our calling. This is the Call Of The Cosmic Wild!

Turnamen Triwizard akan diselenggarakan di Hogwarts. Hanya penyihir berusia di atas tujuh belas yang diizinkan ikut - namun itu tidak menghentikan Harry bermimpi bahwa dirinya akan memenangkan kompetisi. Lalu pada acara Hallowe'en, ketika Piala Api menjatuhkan pilihannya, Harry terpana mengetahui namanya adalah salah satu yang dipilih oleh piala sihir tersebut. Dia akan menghadapi tugas menentang maut, naga, dan penyihir Gelap, namun dengan bantuan sahabat-sahabatnya, Ron dan Hermione, dia mungkin berhasil lolos - tetap hidup!