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Spectra is the new digital magazine bringing you the best in new sci-fi, horror and fantasy short fiction, news and reviews. With four new stories from established writers and rising talent every issue, Spectra Magazine delivers the cutting edge of digital fiction direct to your favourite eBook platform. Spectra Magazine is the first science fiction, fantasy and horror short fiction publication dedicated to digital reading, delivering the best in genre-based literary entertainment. Each month, four brand new short stories are curated from award-winning genre writers and new talent alike, bringing you electrifying fiction in a host of different styles. We believe that sci-fi, fantasy and short fiction should dazzle and excite even the most seasoned reader, and we only select authors who are sure to blow your mind, ignite your imagination or turn your dreams into nightmares. Written and designed specifically for the e-book generation and e-reader technology, Spectra Magazine is essential for everyone with a passion for science fiction, fantasy, horror, or anyone looking for something fresh and exciting to bring their e-Reader to life. The future of short fiction is here.
Biographies of more than 100 Irish scientists (or those with strong Irish connections), in the disciplines of Chemistry and Physics, including Astronomy, Mathematics etc., describing them in their Irish and international scientific, social, educational and political context. Written in an attractive informal style for the hypothetical 'educated layman' who does not need to have studied science. Well received in Irish and international reviews.
This volume gathers more than 250,000 words of the finest Science Fiction stories published in the previous year, and includes a thorough review of the year in SF and a comprehensive list of recommended reading.
Current Aspects of Exobiology covers the philosophical aspects, scientific approach, and related research problems in exobiology. Most of the chapters are presented at the Current Research in Exobiology Symposium, held at the Jet Propulsion Laboratory on February 26-28, 1963. This book is composed of 10 chapters and begins with an overview of the nature and occurrence of extraterrestrial living matter. The next chapters survey certain line of evidence concerning extraterrestrial life, including investigation of organo-chemical evolution, organic remains in meteorites, microorganisms of Middle Precambrian Age, and the survival capabilities and the performance of earth organisms in simulated extraterrestrial environments. These topics are followed by discussions on the interesting issues on the possibility of a primordial lunar life and the possibilities of life on mars. A chapter considers the various scientific efforts to detect life outside earth, including experiments on small, unmanned biological laboratories to the surfaces of the planets. Another chapter looks into the possibility of the accidental introduction of terrestrial microorganisms to other planets during the course of space exploration by unmanned spacecraft. The concluding chapters explore the potential of radio search for other intelligent species in space. Exobiologists and researchers in the related fields of exobiology who are interested in extraterrestrial life will find this book invaluable.
This is the second of two volumes on the genesis of quantum mechanics in the first quarter of the 20th century. It covers the period 1923-1927. After covering some of the difficulties the old quantum theory had run into by the early 1920s as well as the discovery of the exclusion principle and electron spin, it traces the emergence of two forms of the new quantum mechanics, matrix mechanics and wave mechanics, in the years 1923-27. It then shows how the new theory took care of some of the failures of the old theory and put its successes on a more solid basis. Finally, it shows how in 1927 the two forms of the new theory were unified, first through statistical transformation theory, then through the Hilbert space formalism. This volume provides a detailed analysis of the classic papers by Heisenberg, Born, Jordan, Dirac, De Broglie, Einstein, Schrödinger, von Neumann and other authors. Drawing on the correspondence of these and other physicists, their later reminiscences and the extensive secondary literature on the “quantum revolution”, this volume places these papers in the context of the discussions out of which modern quantum mechanics emerged. It argues that the genesis of modern quantum mechanics can be seen as the construction of an arch on a scaffold provided by the old quantum theory, discarded once the arch could support itself.
Highly readable account of meteors, especially the spectacular Leonid showers, due in mid-November.
Low Power UWB CMOS Radar Sensors deals with the problem of designing low cost CMOS radar sensors. The radar sensor uses UWB signals in order to obtain a reasonable target separation capability, while maintaining a maximum signal frequency below 2 GHz. This maximum frequency value is well within the reach of current CMOS technologies. The use of UWB signals means that most of the methodologies used in the design of circuits and systems that process narrow band signals, can no longer be applied. Low Power UWB CMOS Radar Sensors provides an analysis between the interaction of UWB signals, the antennas and the processing circuits. This analysis leads to some interesting conclusions on the types of antennas and types of circuits that should be used. A methodology to compare the noise performance of UWB processing circuits is also derived. This methodology is used to analyze and design the constituting circuits of the radar transceiver. In order to validate the design methodology a CMOS prototype is designed and experimentally evaluated.
Niels Bohr and the Quantum Atom is the first book that focuses in detail on the birth and development of Bohr's atomic theory and gives a comprehensive picture of it. At the same time it offers new insight into Bohr's peculiar way of thinking, what Einstein once called his 'unique instinct and tact'. Contrary to most other accounts of the Bohr atom, the book presents it in a broader perspective which includes the reception among other scientists and the criticism launched against it by scientists of a more conservative inclination. Moreover, it discusses the theory as Bohr originally conceived it, namely, as an ambitious theory covering the structure of atoms as well as molecules. By discussing the theory in its entirety it becomes possible to understand why it developed as it did and thereby to use it as an example of the dynamics of scientific theories.