Dark Object

Dark Object
Title Dark Object PDF eBook
Author Don Ledger
Publisher Dell
Pages 194
Release 2008-12-10
Genre Body, Mind & Spirit
ISBN 0307483568

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The facts confirm the UFO crash happened. Officials deny it. What don’t they want us to know? In 1965 a massive wave of UFO sightings occurs worldwide. In 1967 residents of Shag Harbor, Canada, witness a huge UFO crash into the bay. Three Royal Canadian Mounties watch it float before sinking. Navy divers mount an extensive search. Now officials say nothing ever happened. Why? Researchers Don Ledger and Chris Styles—Styles himself an eyewitness to the Shag Harbor crash—have tackled one of the best documented and most top-secret incidents in the annals of UFO sightings. What they have found out will astound—and outrage—readers. From mysterious surveillance twenty-five years after the crash to the sudden disappearance of written records, someone wanted the investigation stopped. But Ledger and Styles now file their stunning report—and reach a chilling conclusion about the Dark Object, what really happened, and what remains hidden today. . . .

The Dark Object

The Dark Object
Title The Dark Object PDF eBook
Author Katrina Palmer
Publisher
Pages 117
Release 2010
Genre Art schools
ISBN 9781906012229

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The Shadow of the Black Hole

The Shadow of the Black Hole
Title The Shadow of the Black Hole PDF eBook
Author John W. Moffat
Publisher Oxford University Press, USA
Pages 233
Release 2020
Genre Science
ISBN 0190650729

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"Black holes are one of the extraordinary phenomena in the universe whose existence was surmised not by observations, but by theory. The black hole is a prediction of Einstein's 1915-1916 gravitational theory, general relativity, which replaced Sir Isaac Newton's gravity theory, published in his famous treatise Principia in 1687. In 1784, Reverend John Michell, a fellow of Queens' College and Professor of Geology at Cambridge University, had already envisioned what we now call black holes. He asked what would happen if a star's gravity were so strong that its escape velocity - the speed at which a rocket, for example, would have to travel to leave the star - exceeded the speed of light? Michell realized that any light emanating from the star would have to fall back to its surface. He speculated that the escape velocity would exceed the speed of light for a very massive star, making the star invisible to an observer"--

Object-Oriented Ontology

Object-Oriented Ontology
Title Object-Oriented Ontology PDF eBook
Author Graham Harman
Publisher Penguin UK
Pages 255
Release 2018-03-01
Genre Nature
ISBN 0241269172

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What is reality, really? Are humans more special or important than the non-human objects we perceive? How does this change the way we understand the world? We humans tend to believe that things are only real in as much as we perceive them, an idea reinforced by modern philosophy, which privileges us as special, radically different in kind from all other objects. But as Graham Harman, one of the theory's leading exponents, shows, Object-Oriented Ontology rejects the idea of human specialness: the world, he states, is clearly not the world as manifest to humans. At the heart of this philosophy is the idea that objects - whether real, fictional, natural, artificial, human or non-human - are mutually autonomous. In this brilliant new introduction, Graham Harman lays out the history, ideas and impact of Object-Oriented Ontology, taking in everything from art and literature, politics and natural science along the way. Graham Harman is Distinguished Professor of Philosophy at SCI-Arc, Los Angeles. A key figure in the contemporary speculative realism movement in philosophy and for his development of the field of object-oriented ontology, he was named by Art Review magazine as one of the 100 most influential figures in international art.

Proceedings, American Philosophical Society (vol. 96, no. 3)

Proceedings, American Philosophical Society (vol. 96, no. 3)
Title Proceedings, American Philosophical Society (vol. 96, no. 3) PDF eBook
Author
Publisher American Philosophical Society
Pages 284
Release
Genre
ISBN 9781422381786

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The Visual System in Vertebrates

The Visual System in Vertebrates
Title The Visual System in Vertebrates PDF eBook
Author F. Crescitelli
Publisher Springer Science & Business Media
Pages 816
Release 2013-12-11
Genre Medical
ISBN 3642664687

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The vertebrate eye has been, and continues to be, an object of interest and of inquiry for biologists, physicists, chemists, psychologists, and others. Quite apart from its important role in the development of ophthalmology and related medical disciplines, the vertebrate eye is an exemplar of the ingenuity of living systems in adapting to the diverse and changing environments in which vertebrates have evolved. The wonder is not so much that the visual system, like other body systems, has been able to adapt in this way, but rather that these adaptations have taken such a variety of forms. In a previous volume in this series (VII/I) Eakin expressed admiration for the diversity of invertebrate photoreceptors. A comparable situation exists for the vertebrate eye as a whole and one object of this volume is to present to the reader the nature of this diversity. One result of this diversification of ocular structures and properties is that the experimental biologist has available a number of systems for study that are unique or especially favorable for the investigation of particular questions in visual science or neurobiology. This volume includes some examples of progress made by the use of such specially selected vertebrate systems. It is our hope that this comparative approach will continue to reveal new and useful preparations for the examination of important questions.

Geophysik II / Geophysics II

Geophysik II / Geophysics II
Title Geophysik II / Geophysics II PDF eBook
Author
Publisher Springer Science & Business Media
Pages 1054
Release 2012-12-06
Genre Science
ISBN 3642458815

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45 downwards because (j on the average increases with height; but this conclusion does not follow from (18.3) when the dependency of Kc upon ~o is taken into consideration. s 2 ERTELl and PRIESTLEY and SWINBANK have shown that the upward eddy flux of sensible heat must be larger than indicated by (18.3), because this formula does not account for the fact that rising eddies are systematically warmer than sinking eddies because of the effect of buoyancy. The reader is referred to the reviews by SUTTON [22], [23] and PRIESTLEY and SHEP PARD [15) for further details concerning eddy-flux of heat and turbulent diffusion. 19. RICHARDSON'S criterion. The right-hand side of (15.10) represents the rate of production of eddy energy. The last term represents energy loss by dissipation; in order that the eddy energy shall be maintained, it is therefore necessary that P div V" - (! V" v" . grad. v > O.