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Author: James Geach
Publisher: Reaktion Books
ISBN: 1789140218
Category : Science
Languages : en
Pages : 185
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Book Description
Have you ever wondered what is the most distant source of light we can see, or how a star shines? Did you know that black holes can blaze like cosmic beacons across intergalactic space, and that ancient radio waves might herald the ignition of the very first stars? Have you ever thought about what light really is? Five Photons explains what we know about the universe through five different journeys of light across space and time. They are tales of quantum physics and general relativity, stars and black holes, dark matter and dark energy. Let yourself be swept away on a journey of discovery towards a deeper understanding of the cosmos.
Author: James Geach
Publisher: Reaktion Books
ISBN: 1789140218
Category : Science
Languages : en
Pages : 185
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Book Description
Have you ever wondered what is the most distant source of light we can see, or how a star shines? Did you know that black holes can blaze like cosmic beacons across intergalactic space, and that ancient radio waves might herald the ignition of the very first stars? Have you ever thought about what light really is? Five Photons explains what we know about the universe through five different journeys of light across space and time. They are tales of quantum physics and general relativity, stars and black holes, dark matter and dark energy. Let yourself be swept away on a journey of discovery towards a deeper understanding of the cosmos.
Author: Frank Verhaegen
Publisher: CRC Press
ISBN: 1000455599
Category : Medical
Languages : en
Pages : 579
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Book Description
About ten years after the first edition comes this second edition of Monte Carlo Techniques in Radiation Therapy: Introduction, Source Modelling, and Patient Dose Calculations, thoroughly updated and extended with the latest topics, edited by Frank Verhaegen and Joao Seco. This book aims to provide a brief introduction to the history and basics of Monte Carlo simulation, but again has a strong focus on applications in radiotherapy. Since the first edition, Monte Carlo simulation has found many new applications, which are included in detail. The applications sections in this book cover the following: Modelling transport of photons, electrons, protons, and ions Modelling radiation sources for external beam radiotherapy Modelling radiation sources for brachytherapy Design of radiation sources Modelling dynamic beam delivery Patient dose calculations in external beam radiotherapy Patient dose calculations in brachytherapy Use of artificial intelligence in Monte Carlo simulations This book is intended for both students and professionals, both novice and experienced, in medical radiotherapy physics. It combines overviews of development, methods, and references to facilitate Monte Carlo studies.
Author: Barry R Clarke
Publisher: World Scientific
ISBN: 9811227608
Category : Science
Languages : en
Pages : 302
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Book Description
With clear illustrations throughout and without recourse to quantum mechanics, the reader is invited to revisit unsolved problems lying at the foundations of theoretical physics. Maxwell and his contemporaries abandoned their search for a geometrical representation of the electric and magnetic fields. The wave-particle dilemma and Bose-Einstein statistical counting have resulted in unsatisfactory non-realistic interpretations. Furthermore, a simple structure of the hydrogen atom that includes hyperfine levels is still wanting.Working with the latest experimental data in photonics a proposed solution to the wave-particle dilemma is suggested based on an array of circular-polarized rays. The Bose-Einstein counting procedure is recast in terms of distinguishable elements. Finally, a vortex model of a 'particle' is developed based on a trapped photon. This consists of a single ray revolving around a toroidal surface, and allows a geometrical definition of mass, electric potential, and magnetic momentum. With the adjustment of two parameters, values to 4 dp for the hyperfine frequencies (MHz) of hydrogen can be obtained for which a computer program is available.
Author: Ole Keller
Publisher: CRC Press
ISBN: 143984044X
Category : Science
Languages : en
Pages : 464
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Book Description
From the early wave-particle arguments to the mathematical theory of electromagnetism to Einstein's work on the quantization of light, different descriptions of what constitutes light have existed for over 300 years. This book examines the photon phenomenon from several perspectives. It demonstrates the importance of studying the photon as a concept belonging to a global vacuum (matter-free space). The book explains the models and physical and mathematical descriptions of light and examines the behavior of light and its interaction with matter.
Author: Jack W. Geis
Publisher: AuthorHouse
ISBN: 1452046603
Category :
Languages : en
Pages : 430
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Book Description
"At long last, a promising dialogue between science and medicine has begun. A focal point of this discussion is healing and how it happens. Jack W. Geis shows how modern physics and spirituality are centrally involved in this debate. No one who is interested in the current interface between science, spirituality and medicine can afford to neglect his ideas."—Larry Dossey, MD, Author: Healing Beyond the Body, and Healing Words: The Power of Prayer and the Practice of Medicine "This book introduces some of the most perplexing and exciting aspects of the revolution going on in physics today as it continues toward an increasingly metaphysical basis for defining reality. This exciting scientific revolution should be shared by everyone and the issues taken up in this book form a basis for that participation. That the math is not in the chalk is becoming increasingly evident, as well as the question as to which is more substantial."—Dr. Laurance R. Doyle, Astrophysics and Planetary Science, Center for the Study of Life in the Universe, SETI Institute
Author: Paul A. Hunter
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 92
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Book Description
Results are presented of an investigation of stability, controllability, and stalling characteristics of five light airplanes. The effect of slots on the flying qualities of one of the airplanes is also shown. These five airplanes are considerd typical of the light airplanes now being manufactured.
Author: James Elkins
Publisher: Routledge
ISBN: 1135961603
Category : Art
Languages : en
Pages : 319
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Book Description
James Elkins's How to Use Your Eyes invites us to look at--and maybe to see for the first time--the world around us, with breathtaking results. Here are the common artifacts of life, often misunderstood and largely ignored, brought into striking focus. With the discerning eye of a painter and the zeal of a detective, Elkins explores complicated things like mandalas, the periodic table, or a hieroglyph, remaking the world into a treasure box of observations--eccentric, ordinary, marvelous.
Author: Rayner Ye
Publisher: Rayner Ye
ISBN:
Category : Fiction
Languages : en
Pages : 879
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Book Description
On a backwater planet, overflowing with crime and violence, she is their only hope. Aedre always dreamed of living on another world. But the slums of the Firesnake, was not what she had in mind. Amidst the poverty and crime, Aedre finally finds hope in an ancient mystic tradition. A hope that is threatened by a Mafia Godfather, who's becoming obsessed with her. As Aedre's powers grow, she dares to think of revenge, and saving the slaves of the Firesnake, but the risks are high, and so is the price of failure. This Sci-Fi Fantasy series will whisk you away to bizarre worlds, and unexpected realities.
Author: Sally Seidel
Publisher: World Scientific
ISBN: 9814549967
Category :
Languages : en
Pages : 2088
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Book Description
This book presents the latest results from high energy physics laboratories. The topics discussed include: Cosmology, Heavy Ions, Electroweak, Heavy Flavour Physics and CP Violation/Rare Decays, QCD and Beyond the Standard Model, Planck Scale Physics, Accelerator and Non-Accelerator Physics and Instrumentation.
Author: Robert Kelsall
Publisher: John Wiley & Sons
ISBN: 9780470850862
Category : Technology & Engineering
Languages : en
Pages : 480
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Book Description
Die Nanotechnologie ist ein relativ junges, stark aufstrebendes Forschungsgebiet. Durch seine ausgeprägte Interdisziplinarität müssen sich Absolventen der einzelnen naturwissenschaftlichen Fachrichtungen (etwa Physik, Chemie, Materialwissenschaften) gezielt weiterbilden, um in die Nanotechnologie einsteigen zu können. Als eines der ersten einschlägigen Bücher bereitet dieses Werk das Gebiet praxisorientiert und anschaulich speziell für diesen Zweck auf.
