The Spectral Tide

The Spectral Tide PDF

Author: Eric Mills

Publisher: Naval Institute Press

Published: 2009-09-01

Total Pages: 186

ISBN-13: 1612515576

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Now, for the first time, comes a long-overdue book that presents all of the U.S. Navy’s rich cargo of paranormal phenomena. There is the great Stephen Decatur, whose mournful apparition still stalks the halls of his famous home, said to be one of the most haunted spots in Washington, D.C. USS The Sullivans, now a floating museum, is the source of much disturbing spectral activity—poltergeists opening locks, hurling objects, and turning on radar that’s no longer under electrical power. Then there are the repeated sightings of the handsome USS Lexington ghost, “polite . . . kind . . . smartly dressed in a summer white Navy uniform.” From translucent sails to phantom crews, from a flaming ghost ship to the infamous psychic anomaly at the U.S. Naval Academy to battleships where the dead still linger, this book offers no less than a haunted history of the U.S. Navy.

The Tides of Mind: Uncovering the Spectrum of Consciousness

The Tides of Mind: Uncovering the Spectrum of Consciousness PDF

Author: David Gelernter

Publisher: W. W. Norton & Company

Published: 2016-02-22

Total Pages: 288

ISBN-13: 1631490842

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A “rock star” (New York Times) of the computing world provides a radical new work on the meaning of human consciousness. The holy grail of psychologists and scientists for nearly a century has been to understand and replicate both human thought and the human mind. In fact, it's what attracted the now-legendary computer scientist and AI authority David Gelernter to the discipline in the first place. As a student and young researcher in the 1980s, Gelernter hoped to build a program with a dial marked "focus." At maximum "focus," the program would "think" rationally, formally, reasonably. As the dial was turned down and "focus" diminished, its "mind" would start to wander, and as you dialed even lower, this artificial mind would start to free-associate, eventually ignoring the user completely as it cruised off into the mental adventures we know as sleep. While the program was a only a partial success, it laid the foundation for The Tides of Mind, a groundbreaking new exploration of the human psyche that shows us how the very purpose of the mind changes throughout the day. Indeed, as Gelernter explains, when we are at our most alert, when reasoning and creating new memories is our main mental business, the mind is a computer-like machine that keeps emotion on a short leash and attention on our surroundings. As we gradually tire, however, and descend the "mental spectrum," reasoning comes unglued. Memory ranges more freely, the mind wanders, and daydreams grow more insistent. Self-awareness fades, reflection blinks out, and at last we are completely immersed in our own minds. With far-reaching implications, Gelernter’s landmark "Spectrum of Consciousness" finally helps decode some of the most mysterious wonders of the human mind, such as the numinous light of early childhood, why dreams are so often predictive, and why sadism and masochism underpin some of our greatest artistic achievements. It’s a theory that also challenges the very notion of the mind as a machine—and not through empirical studies or "hard science" but by listening to our great poets and novelists, who have proven themselves as humanity's most trusted guides to the subjective mind and inner self. In the great introspective tradition of Wilhelm Wundt and René Descartes, David Gelernter promises to not only revolutionize our understanding of what it means to be human but also to help answer many of our most fundamental questions about the origins of creativity, thought, and consciousness.

A Large Spectrum of Free Oscillations of the World Ocean Including the Full Ocean Loading and Self-attraction Effects

A Large Spectrum of Free Oscillations of the World Ocean Including the Full Ocean Loading and Self-attraction Effects PDF

Author: Malte Müller

Publisher: Springer Science & Business Media

Published: 2008-11-25

Total Pages: 123

ISBN-13: 3540855769

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In this book, data from a model ocean developed to compute free oscillations is used to analyze the LSA effect on tides and the synthesis of tides by free oscillation. It is also used to show the existence of six long-period planetary vorticity modes.

Observations and Modeling of the Internal Tide in a Submarine Canyon

Observations and Modeling of the Internal Tide in a Submarine Canyon PDF

Author: Emil T. Petruncio

Publisher:

Published: 1996

Total Pages: 210

ISBN-13:

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Shipboard ADCP and CTD measurements were conducted in Monterey Submarine Canyon in April and October 1994 to determine the propagation characteristics and energy levels of the semidiurnal internal tide. The measurements reveal a bottom intensified internal tide propagating energy up canyon. The region of strongest motion is in a beam 150-200 m thick, centered approximately 150 m above the Canyon floor. Along canyon baroclinic M2 currents are typically 15-20 cm/s, an order of magnitude larger than the estimated barotropic tidal currents. In April 1994, the internal tidal beam is well described by a progressive wave, while in October 1994, the signal is standing along and perpendicular to the beam. The Princeton Ocean Model was used to study the generation and propagation of semidiurnal internal tides in submarine canyons and to investigate their sensitivity to canyon shape.

Precession, Nutation and Wobble of the Earth

Precession, Nutation and Wobble of the Earth PDF

Author: V. Dehant

Publisher: Cambridge University Press

Published: 2015-04-16

Total Pages: 553

ISBN-13: 1316300331

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Covering both astronomical and geophysical perspectives, this book describes changes in the Earth's orientation, specifically precession and nutation, and how they are observed and computed in terms of tidal forcing and models of the Earth's interior. Following an introduction to key concepts and elementary geodetic theory, the book describes how precise measurements of the Earth's orientation are made using observations of extra-galactic radio-sources by Very Long Baseline Interferometry techniques. It demonstrates how models are used to accurately pinpoint the location and orientation of the Earth with reference to the stars, and how to determine variations in its rotation speed. A theoretical framework is also presented that describes the role played by the structure and properties of the Earth's deep interior. Incorporating suggestions for future developments in nutation theory for the next generation models, this book is ideal for advanced-level students and researchers in solid Earth geophysics, planetary science and astronomy.