The Dimming of Starlight

The Dimming of Starlight PDF Author: Gonzalo Munevar
Publisher: Oxford University Press
ISBN: 0197689914
Category : Education
Languages : en
Pages : 321

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Book Description
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.

The Dimming of Starlight

The Dimming of Starlight PDF Author: Gonzalo Munevar
Publisher: Oxford University Press
ISBN: 0197689914
Category : Education
Languages : en
Pages : 321

Get Book Here

Book Description
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.

Dimming the Day

Dimming the Day PDF Author: Jennifer Grant
Publisher: Augsburg Fortress Publishers
ISBN: 1506471196
Category : Health & Fitness
Languages : en
Pages : 211

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Book Description
"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." --

Optical Communications and Networking

Optical Communications and Networking PDF Author: Zhongqi Pan
Publisher: MDPI
ISBN: 3039282581
Category : Technology & Engineering
Languages : en
Pages : 132

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Book Description
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.

The DIM Hypothesis

The DIM Hypothesis PDF Author: Leonard Peikoff
Publisher: Penguin
ISBN: 0451466640
Category : Philosophy
Languages : en
Pages : 402

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Book Description
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.

Official Gazette of the United States Patent and Trademark Office

Official Gazette of the United States Patent and Trademark Office PDF Author:
Publisher:
ISBN:
Category : Patents
Languages : en
Pages : 2770

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Book Description


The Sunlight Solution

The Sunlight Solution PDF Author: Laurie Winn Carlson
Publisher: Prometheus Books
ISBN: 1615923632
Category : Health & Fitness
Languages : en
Pages : 246

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Book Description
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.

Visible Light Communication

Visible Light Communication PDF Author: Shlomi Arnon
Publisher: Cambridge University Press
ISBN: 1316240444
Category : Technology & Engineering
Languages : en
Pages : 223

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Book Description
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.

The Sun from Space

The Sun from Space PDF Author: Kenneth R. Lang
Publisher: Springer Science & Business Media
ISBN: 3540769536
Category : Science
Languages : en
Pages : 583

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Book Description
The First Edition of The Sun from Space, completed in 1999, focused on the early accomplishments of three solar spacecraft, SOHO, Ulysses, and Yohkoh, primarily during a minimum in the Sun’s 11-year cycle of magnetic activity. The comp- hensive Second Edition includes the main ndings of these three spacecraft over an entire activity cycle, including two minima and a maximum, and discusses the signi cant results of six more solar missions. Four of these, the Hinode, RHESSI, STEREO, and TRACE missions were launched after the First Edition was either nished or nearly so, and the other two, the ACE and Wind spacecraft, extend our investigations from the Sun to its varying input to the Earth. The Second Edition does not contain simple updates or cosmetic patch ups to the material in the First Edition. It instead contains the relevant discoveries of the past decade, integrated into chapters completely rewritten for the purpose. This provides a fresh perspective to the major topics of solar enquiry, written in an enjoyable, easily understood text accessible to all readers, from the interested layperson to the student or professional.

Into the Dim

Into the Dim PDF Author: Janet B. Taylor
Publisher: HarperCollins
ISBN: 0544787692
Category : Young Adult Fiction
Languages : en
Pages : 437

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Book Description
"Instantly engaging, constantly suspenseful, ultimately poignant and satisfying. Loved it!"--Diana Gabaldon, author of the #1 New York Times bestselling Outlander series When fragile, sixteen-year-old Hope Walton loses her mom to an earthquake overseas, her secluded world crumbles. Agreeing to spend the summer in Scotland, Hope discovers that her mother was more than a brilliant academic, but also a member of a secret society of time travelers. And she's alive, though currently trapped in the twelfth century, during the age of Eleanor of Aquitaine. Hope has seventy-two hours to rescue her mother and get back to their own time. Passing through the Dim, Hope enters a brutal medieval world of political intrigue, danger, and violence. A place where any serious interference could alter the very course of history. And when she meets a boy whose face is impossibly familiar, she must decide between her mission and her heart—both of which could leave Hope trapped in the past forever.

Visible Light Communications

Visible Light Communications PDF Author: Zhaocheng Wang
Publisher: John Wiley & Sons
ISBN: 1119331382
Category : Technology & Engineering
Languages : en
Pages : 368

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Book Description
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.