The Dimming
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| Author | : Gonzalo Munevar |
| Publisher | : Oxford University Press |
| Total Pages | : 321 |
| Release | : 2023-08-15 |
| Genre | : Education |
| ISBN | : 0197689914 |
Galileo and Kepler dreamed of the possibility of space exploration, although its reality was later underappreciated and even challenged by social, ideological, and scientific critics as a diversion from our problems on Earth. The Dimming of Starlight tells the fascinating stories of how space exploration places us in unusual situations that force us to come up with new ideas about nature. This strong connection between scientific exploration and scientific change makes us aware of a new panorama of problems, dangers, and opportunities that leads to new solutions and technologies that would have been unimaginable under old perspectives. Thus, the exploration of Venus led to the discovery of the destruction of Earth's Ozone layer. This discovery will save hundreds of millions of lives in the coming centuries. As we explore space, we learn to protect our planet from catastrophe, and all the while we change drastically our ideas about the nature of the universe. With its account of serendipity and splendor, the book invites readers on an exciting journey in which, step by step, we are shown the crucial importance of space exploration for humanity.
| Author | : Zhongqi Pan |
| Publisher | : MDPI |
| Total Pages | : 132 |
| Release | : 2020-03-10 |
| Genre | : Technology & Engineering |
| ISBN | : 3039282581 |
In the past few decades, the optical communication industry has explored multiple degrees of freedom of the photon, such as time, wavelength, amplitude, phase, polarization, and space, to significantly reduce the cost/bit of data transmission by increasing the capacity per fiber through multiplexing technology and by reducing the size and power through electronic and photonic integration. This book aims to explore the latest advancements in this industry, including the technologies in devices, systems, and network levels with applications from short-reach chip-to-chip interconnections to long-haul backbone communications at the trans-oceanic distance.
| Author | : Jennifer Grant |
| Publisher | : Augsburg Fortress Publishers |
| Total Pages | : 211 |
| Release | : 2021-10-19 |
| Genre | : Health & Fitness |
| ISBN | : 1506471196 |
"The moon is out, the air has cooled, and you are ready for bed. You know that scrolling on your phone does not draw you toward sleep but adds to your worries. In these pages, author Jennifer Grant offers gentle meditations that help you direct your gaze away from screens and uncertainties and toward the natural world. Replace anxiety with awe, distraction with focus, and worry with true rest. Calm your mind and settle into stillness. It is time to dim the day." --
| Author | : Leonard Peikoff |
| Publisher | : Penguin |
| Total Pages | : 402 |
| Release | : 2013-12-03 |
| Genre | : Philosophy |
| ISBN | : 0451466640 |
With his groundbreaking and controversial DIM hypothesis, Dr. Leonard Peikoff casts a penetrating new light on the process of human thought, and thereby on Western culture and history. In this far-reaching study, Peikoff identifies the three methods people use to integrate concrete data into a whole, as when connecting diverse experiments by a scientific theory, or separate laws into a Constitution, or single events into a story. The first method, in which data is integrated through rational means, he calls Integration. The second, which employs non-rational means, he calls Misintegration. The third is Disintegration—which is nihilism, the desire to tear things apart. In The DIM Hypothesis Peikoff demonstrates the power of these three methods in shaping the West, by using the categories to examine the culturally representative fields of literature, physics, education, and politics. His analysis illustrates how the historical trends in each field have been dominated by one of these three categories, not only today but during the whole progression of Western culture from its beginning in Ancient Greece. Extrapolating from the historical pattern he identifies, Peikoff concludes by explaining why the lights of the West are going out—and predicts the most likely future for the United States.
| Author | : |
| Publisher | : |
| Total Pages | : 2770 |
| Release | : 1976 |
| Genre | : Patents |
| ISBN | : |
| Author | : Shlomi Arnon |
| Publisher | : Cambridge University Press |
| Total Pages | : 223 |
| Release | : 2015-03-05 |
| Genre | : Technology & Engineering |
| ISBN | : 1316240444 |
Visible light communication (VLC) is an evolving communication technology for short-range applications. Exploiting recent advances in the development of high-power visible-light emitting LEDs, VLC offers an energy-efficient, clean alternative to RF technology, enabling the development of optical wireless communication systems that make use of existing lighting infrastructure. Drawing on the expertise of leading researchers from across the world, this concise book sets out the theoretical principles of VLC, and outlines key applications of this cutting-edge technology. Providing insight into modulation techniques, positioning and communication, synchronisation, and industry standards, as well as techniques for improving network performance, this is an invaluable resource for graduate students and researchers in the fields of visible light communication, optical wireless communication, and industrial practitioners in the field of telecommunications.
| Author | : Laurie Winn Carlson |
| Publisher | : Prometheus Books |
| Total Pages | : 246 |
| Release | : 2009-12-02 |
| Genre | : Health & Fitness |
| ISBN | : 1615923632 |
In this informative overview of an often-neglected topic, Carlson examines the historical and cultural factors that have created an indoor lifestyles and the medical evidence that suggests that people need to get out in the sun.
| Author | : American Institute of Electrical Engineers |
| Publisher | : |
| Total Pages | : 1934 |
| Release | : 1915 |
| Genre | : Electrical engineering |
| ISBN | : |
List of members of the Institute in v. 24-26.
| Author | : United States Department of the Army |
| Publisher | : |
| Total Pages | : 502 |
| Release | : |
| Genre | : |
| ISBN | : |
| Author | : Zhaocheng Wang |
| Publisher | : John Wiley & Sons |
| Total Pages | : 368 |
| Release | : 2017-11-29 |
| Genre | : Technology & Engineering |
| ISBN | : 1119331382 |
A complete and comprehensive reference on modulation and signal processing for visible light communication This informative new book on state-of-the-art visible light communication (VLC) provides, for the first time, a systematical and advanced treatment of modulation and signal processing for VLC. Visible Light Communications: Modulation and Signal Processing offers a practical guide to designing VLC, linking academic research with commercial applications. In recent years, VLC has attracted attention from academia and industry since it has many advantages over the traditional radio frequency, including wide unregulated bandwidth, high security, and low cost. It is a promising complementary technique in 5G and beyond wireless communications, especially in indoor applications. However, lighting constraints have not been fully considered in the open literature when considering VLC system design, and its importance has been underestimated. That’s why this book—written by a team of experts with both academic research experience and industrial development experience in the field—is so welcome. To help readers understand the theory and design of VLC systems, the book: Details many modern techniques on both modulation and signal processing aspects Links academic research with commercial applications in visible light communications as well as other wireless communication systems Combines theoretical rigor with practical examples in presenting optical camera communication systems Visible Light Communications: Modulation and Signal Processing serves as a useful tool and reference book for visible light communication professionals, as well as wireless communication system professionals and project managers. It is also an important guide for undergraduates and graduates who want to conduct research in areas of wireless communications.
