Are you planning on taking the AFOQT and want to get your best score?Experienced educators at Military Prep Academy have created a comprehensive study guide for the Air Force Officer Qualifying Test. This exam preparation book covers every section on the AFOQT:Verbal AnalogiesArithmetic ReasoningWord KnowledgeMath KnowledgeReading ComprehensionSituational JudgementSelf-Description InventoryPhysical ScienceTable ReadingInstrument ComprehensionBlock CountingAviation Information300+ Practice Test Questions: Each section of the AFOQT is covered in this study guide and is accompanied by a real length practice test that will prepare you for the official test.Detailed Answer Guide: After each practice test, we have included a detailed answer guide. Not only does it contain the correct answers to the practice test questions, but it explains how to arrive at the correct answer. You can learn from your mistakes on the practice test by checking your answers with the detailed answer guide.Guaranteed to Raise Your Score: If this study guide does not help you boost your score, return it for a full refund. We believe in this product’s ability to raise your score so much so that we are willing to make a promise of improving your score or your money back.Includes Exam Success 2.0: Understanding the subjects and types of questions on the AFOQT is only one aspect to exam success. Understanding how to study and mentally face the most challenging aspects of the test is an entirely different skill, yet vital to you maximizing your score. Exam Success 2.0 covers expert tips and strategies to get the most out of your test preparation and doing your best on test day.USAF is not affiliated with Military Prep Academy. AFOQT is a registered trademark of Air Force Officer Qualifying Test. Read more

When Galileo designed the tube of his first telescope, optomechanics was born. Concerned with the shape and position of surfaces in an optical system, optomechanics is a subfield of physics that is arguably as old as optics. However, while universities offer courses on the subject, there is a scarcity in textbook selections that skillfully and properly convey optomechanical fundamentals to aspiring engineers. Complemented by tutorial examples and exercises, this textbook rectifies this issue by providing instructors and departments with a better choice for transmitting to students the basic principles of optomechanics and allowing them to comfortably gain familiarity with the field’s content. Practicing optical engineers who engage in self-study and wish to enhance the extent of their knowledge will also find benefit from the vast experience of the authors. The book begins with a discussion of materials based on optomechanical figures of merit and features chapters on windows, prisms, and lenses. The authors also cover topics related to design parameter, mounting small mirrors, metal mirrors with a discussion of infrared applications, and kinematic design. Overall, Fundamentals of Optomechanics outfits students and practitioners with a stellar foundation for exploring the design and support of optical system surfaces under a wide variety of conditions. Provides the fundamentals of optomechanics Presents self-contained, student-friendly prose, written by top scientists in the field Discusses materials, windows, individual lenses and multiple lenses Includes design, mounting, and performance of mirrors Includes homework problems and a solutions manual for adopting professors Read more

In How the Laser Happened, Nobel laureate Charles Townes provides a highly personal look at some of the leading events in 20th-century physics. Townes was inventor of the maser, of which the laser is one example; an originator of spectroscopy using microwaves; and a pioneer in the study of gas clouds in galaxies and around stars. Throughout his career, he has also been deeply engaged with issues outside of academic research. He worked on applied research projects for Bell Labs; served on the board of directors for General Motors; and devoted extensive effort to advising the government on science, policy, and defense. This memoir traces his multifaceted career from its beginnings on the family farm in South Carolina. Spanning decades of groundbreaking research, the audiobook provides a hands-on description of how working scientists and inventors get their ideas. It also gives a behind-the-scenes look at the scientific community, showing how scientists respond to new ideas and how they approach a variety of issues, from priority and patents to the social and political implications of their work. In addition, Townes touches on the sociology of science, uncovering some of the traditions and values that are invisible to an outsider. A towering and energetic figure, Townes has explored or pioneered most of the roles available to the modern scientist. In addition to fundamental research, he was actively involved in the practical uses of the laser and in the court cases to defend the patent rights. He was a founding member of the Jasons, an influential group of scientists that independently advises the government on defense policy, and he played an active part in scientific decisions and policies from the Truman through the Reagan administration. This lively memoir, packed with firsthand accounts and historical anecdotes, is an invaluable resource for anyone interested in the history of science and an inspiring example for students considering scientific careers. Read more

Reflecting the rapid growth of pain medicine and of ultrasound as a tool, this Third Edition is more comprehensive and inclusive than previous editions and features additional pages, tables, diagrams, and color illustrations. In addition to the discipline of Anesthesiology, other specialists, who use local and regional anesthesia techniques, (surgeons, ophthalmologists, emergency medicine physicians and dentists), have also contributed to this edition of the book. Complications of Regional Anesthesia, with its newly added subtitle, Principles of Safe Practice in Local and Regional Anesthesia, stresses the relatively new emphasis and importance on safety and prevention and broadens the discussion to include the practice and administration of not just regional but also local anesthesia.Each chapter has been thoroughly revised, brought up-to-date, and features full color images. Individual chapters cover complications associated with specific nerve blocks; IV and catheter methods; obstetric regional anesthesia; pediatric regional anesthesia; ophthalmic regional anesthesia; and treatment of acute and chronic pain. Read more

Praise for the 1st Edition:"well written and up to date…. The problem sets at the end of each chapter reinforce and enhance the material presented, and may give students confidence in handling real-world problems." ―Optics & Photonics News"rigorous but simple description of a difficult field keeps the reader’s attention throughout…. serves perfectly for an introductory-level course." ―Physics TodayThis fully revised introduction enables the reader to understand and use the basic principles related to many phenomena in nonlinear optics and provides the mathematical tools necessary to solve application-relevant problems. The book is a pedagogical guide aimed at a diverse audience including engineers, physicists, and chemists who want a tiered approach to understanding nonlinear optics. The material is augmented by numerous problems, with many requiring the reader to perform real-world calculations for a range of fields, from optical communications to remote sensing and quantum information. Analytical solutions of equations are covered in detail and numerical approaches to solving problems are explained and demonstrated. The second edition expands the earlier treatment and includes:A new chapter on quantum nonlinear optics.Thorough treatment of parametric optical processes covering birefringence, tolerances and beam optimization to design and build high conversion efficiency devices.Treatment of numerical methods to solving sets of complex nonlinear equations.Many problems in each chapter to challenge reader comprehension.Extended treatment of four-wave mixing and solitons.Coverage of ultrafast pulse propagation including walk-off effects. Read more

In This Book, You’ll Discover:Why a candle flame is the ultimate "focus hack"—and how it beats modern gadgets for deep concentration.The Golden Ratio of Trataka—the exact mathematical distance for maximum neural impact. (Yes, science has an answer!)Pineal Gland Activation or Myth? What happens inside your brain during flame gazing—proven by EEG scans & ancient yogic texts alike.From Insomnia to Instant Zen—how 10 minutes of flame gazing can replace an hour of meditation (and why monks swear by it).Third Eye or Just Biology? The shocking overlap between neuroscience and the Ajna Chakra—with real MRI case studies.Lucid Dreaming & Beyond—documented cases where Trataka unlocked astral projection, photographic memory, and even precognition.The Quantum Flame Theory—how a simple fire connects to sacred geometry, biohacking, and altered states of awareness."यत्र धूमो रजो वायुस्तत्र ज्योतिर्न विद्यते।अग्नौ प्रविष्टे तेजस्वी देही ज्ञानमयो भवेत्॥"(Where there is smoke, dust, or wind, light cannot shine clearly. But when one enters the fire of awareness, the seeker becomes radiant with knowledge.)Who Is This For?✔ Meditation newbies who want fast, tangible results—no years of sitting required.✔ Scientists & skeptics hungry for proof of ancient wisdom in labs today.✔ Spiritual seekers ready to explore consciousness beyond the physical.✔ Biohackers chasing the ultimate nootropic—hidden in an inexpensive candle."One flame holds more secrets than a thousand books."🔥 Flame Gazing: The Lost Science of Trataka 🔥What if the ancient secret to laser-sharp focus, mystical visions, and supercharged intuition was hiding in plain sight—inside a humble candle flame?For centuries, yogis, warriors, and sages used Trataka (steady flame gazing) to:Awaken the "third eye" (Ajna Chakra)Trigger lucid dreams and out-of-body experiencesDevelop photographic memory (like ancient Vedic scholars)Now, modern science confirms:🔬 Harvard studies show flame meditation boosts gamma brainwaves (linked to genius-level insight)🧠 MRI scans reveal the pineal gland (your biological "third eye") lights up during Trataka⏳ 10 minutes = 1 hour of meditation (time dilation proven in biofeedback trials)But be warned: This isn’t just "looking at fire." When done correctly, Trataka can:✓ Eradicate insomnia in 7 days (Swami Rama’s Himalayan technique)✓ Induce "flow state" faster than any nootropic (used by Olympic archers)✓ Unlock "siddhis" (documented cases of X-ray vision and remote viewing)"दृष्ट्वा दीपं निरीक्षेत ज्वालामध्ये स्थितं शिवम्""Gaze at the lamp’s flame—find Shiva dancing in its core"In this book you’ll learn:The forbidden 13-minute protocol (beyond this, perception shifts permanently)Why blue-flame candles work 73% better (NASA’s color frequency research)How WW2 spies used Trataka to memorize entire maps in minutesWarning: May cause unexpected side effects:• Vivid ancestral memories surfacing• Spontaneous time distortion (minutes feeling like hours)• "Flame visions" revealing hidden truths"You don’t find the light—the light finds you."With 24 years of experience, the author provides a step-by-step guide to mastering Flame Trataka, offering real-world examples from history and modern times. Read more

Building Electro-Optical SystemsIn the newly revised third edition of Building Electro-Optical Systems: Making It All Work, renowned Dr. Philip C. D. Hobbs delivers a birds-eye view of all the topics you’ll need to understand for successful optical instrument design and construction. The author draws on his own work as an applied physicist and consultant with over a decade of experience in designing and constructing electro-optical systems from beginning to end. The book’s topics are chosen to allow readers in a variety of disciplines and fields to quickly and confidently decide whether a given device or technique is appropriate for their needs. Using accessible prose and intuitive organization, Building Electro-Optical Systems remains one of the most practical and solution-oriented resources available to graduate students and professionals. The newest edition includes comprehensive revisions that reflect progress in the field of electro-optical instrument design and construction since the second edition was published. It also offers approximately 350 illustrations for visually oriented learners. Readers will also enjoy: A thorough introduction to basic optical calculations, including wave propagation, detection, coherent detection, and interferometersPractical discussions of sources and illuminators, including radiometry, continuum sources, incoherent line sources, lasers, laser noise, and diode laser coherence controlExplorations of optical detection, including photodetection in semiconductors and signal-to-noise ratiosFull treatments of lenses, prisms, and mirrors, as well as coatings, filters, and surface finishes, and polarizationPerfect for graduate students in physics, electrical engineering, optics, and optical engineering, Building Electro-Optical Systems is also an ideal resource for professional designers working in optics, electro-optics, analog electronics, and photonics. Read more

None

This book, written from an industrial vantage point, describes the characteristics, design, and operation of solid-state lasers. As the title implies, the emphasis is placed on the technical aspects of these systems rather than on theoretical concepts. Lengthy mathematicalderivationshavebeenavoidedbecausethetheoryisnottreatedasanend initself,butratherservestoexplaintheexperimentalresultsobservedinthelaboratory. However, there is suf?cient theoretical background provided in each chapter to make the book self-contained. Solid-State Laser Engineering is mainly intended for the practicing scientist or engineer who is interested in the design or use of solid-state lasers. The response from readers has shown that the comprehensive treatment of the subject makes the work useful also to students of laser physics who want to supplement their theoretical knowledgewiththeengineeringaspectsoflasers.Althoughnotwrittenintheformofa collegetext,thebookmightbeusedinanadvancedcollegecourseonlasertechnology. After a historical overview, the book starts with a review of the basic concepts of laser physics (Chap. 1). Analytical expressions of the threshold condition, gain, and output of laser oscillators are derived in Chap. 3. An oscillator followed by one or more ampli?ers is a common architecture in pulsed solid-state laser systems to boost output energy. Energy storage and gain of ampli?ers is discussed in Chap. 4. Four chapters deal with the basic subsystems of solid-state lasers. These are the active medium, the optical resonator, the pumping system, and the thermal mana- ment. Properties of solid-state laser hosts and active ions are reviewed in Chap. 2. Read more

** Paperback in FULL, High-Quality Color Printing - 30 pages **Printed on Premier Paper and color ink.Editor's Note:This is an EXCELLENT discussion of the Electromagnetic Spectrum suitable or those young and old!To be able to understand that, from very low frequencies, then into sound, then radio waves, then into infrared, visible light, ultraviolet light, and finally into X-Rays and Gamma Rays, it is all one continuous spectrum.This book does a tremendous job of describing not only the spectrum, but also the energy in the various portions of the spectrum, and describing each section in depth!We give this book our highest approval! NASA scientists and their ability to depict the concepts with beautiful graphics and explanations is second to none!Everyone, from middle school through college levels and beyond, should be exposed to this understanding about the EM spectrum. It is truly eye-opening in one's understanding of the spectrum as it relates to everything we see, hear, transmit, light, etc.TOUR OF THE ELECTROMAGNETIC SPECTRUMWhen you tune your radio, watch TV, send a text message, or pop popcorn in a microwave oven, you are using electromagnetic energy. You depend on this energy every hour of every day. Without it, the world you know could not exist.Electromagnetic energy travels in waves and spans a broad spectrum from very long radio waves to very short gamma rays. The human eye can only detect only a small portion of this spectrum called visible light. A radio detects a different portion of the spectrum, and an x-ray machine uses yet another portion.NASA’s scientific instruments use the full range of the electromagnetic spectrum to study the Earth, the solar system, and the universe beyond.OUR PROTECTIVE ATMOSPHEREOur Sun is a source of energy across the full spectrum, and its electromagnetic radiation bombards our atmosphere constantly. However, the Earth’s atmosphere protects us from exposure to a range of higher energy waves that can be harmful to life.Gamma rays, x-rays, and some ultraviolet waves are “ionizing,” meaning these waves have such a high energy that they can knock electrons out of atoms. Exposure to these high-energy waves can alter atoms and molecules and cause damage to cells in organic matter. These changes to cells can sometimes be helpful, as when radiation is used to kill cancer cells, and other times not, as when we get sunburned.ANATOMY OF AN ELECTROMAGNETIC WAVEEnergy, a measure of the ability to do work, comes in many forms and can transform from one type to another. Examples of stored or potential energy include batteries and water behind a dam. Objects in motion are examples of kinetic energy. Charged particles—such as electrons and protons—create electromagnetic fields when they move, and these fields transport the type of energy we call electromagnetic radiation, or light.You will thoroughly enjoy this book, it's easy-to-follow descriptions, the beautiful colorful graphics and the principles discussed. Read more

Laser F/X: The Light Show Handbook (Mark II) - Everything you ever wanted to know about laser light shows (laser displays). An invaluable Handbook filled with technical knowledge, diagrams and colour photos with everything you ever wanted to know about laser light shows (laser displays). This book is useful to a broad range of readers, from hobbyists to experimenters, to professionals interested in laser light shows and laser displays. This softcover version has been re-written and updated from the original 1996 Edition and includes comprehensive and up-to-date information. Moreover, this is the only technical Handbook in the field that provides expert information and guidance to help anyone interested in lasers learn and grow in creating their own beautiful laser light displays.An indispensable and valuable information source for anyone into laser shows and laser displays. Read more

While many of us understand complex theories of criticism or finance, we cannot explain why the lights go on when we flick a switch or how a radio works. In this reader-friendly, unabridged edition of three of his best-selling books, renowned science writer Isaac Asimov demystifies physics, teaching the fundamentals in a manner easily understood by lay people. Including the complete text of Motion, Sound and Heat, Light, Magnetism and Electricity, and The Electron, Proton and Neutron, this volume will guide you through the evolution of physics from its early Greek beginnings up to the modern theories of the creation of time, space and matter. Each volume relates the tale of the human quest through the ages for answers to the fundamental questions of how the universe works. Told in its historical context, this quest for knowledge is a story of high drama and uncommon valor, when men put their very lives on the line for the sake of scientific truth.3 Volumes in One: Motion, Sound & Heat; Light, Magnetism & Electricity; The Electron, Proton & Neutron. 1993 Barnes & Noble reprint of three Isaac Asimov classics. Originally published in 1966. Read more

In Echoes in the Mind, Anthony Gilbert Rodriguez delves into the hidden world of voice-to-skull (V2K) technology, a phenomenon that has sparked both fascination and fear. Drawing on scientific research, personal accounts, and technological developments, Rodriguez reveals the methods, implications, and potential uses of V2K, a technology that transmits voices directly into an individual's mind. This book not only examines the possibilities of psychological manipulation but also the ethical and social questions that arise from this emerging technology. From military applications to possible covert uses, Echoes in the Mind invites readers to explore the boundary where science fiction meets reality and challenges them to confront the potential impact of mind-altering technology on society. Read more

Desvele los misterios de la física cuántica: Guía para principiantes¿Alguna vez se ha preguntado si existen mundos más allá del que vemos? ¿Siente curiosidad por los secretos del universo y la naturaleza de la realidad? Sumérjase en el fascinante mundo de la física cuántica, y descubra cómo puede transformar su comprensión de la vida y el cosmos.Explore las maravillas de la física cuántica:Comprenda los fundamentos cuánticos: Conozca los principios básicos de la mecánica cuántica y cómo explican el comportamiento de las partículas y las ondas.Descubra la historia cuántica: Siga el desarrollo de la física cuántica desde sus inicios hasta su estado actual, y conozca a los pioneros que dieron forma a este revolucionario campo.Domine los conceptos clave: Comprenda ideas complejas como la superposición, la dualidad onda-partícula y el entrelazamiento cuántico a través de explicaciones claras y accesibles.Profundice en la luz y la materia: Explore cómo la luz se comporta como onda y como partícula, y comprenda los experimentos pioneros que revelaron estas propiedades duales.Experimente los fenómenos cuánticos: Conozca el efecto fotoeléctrico, el efecto túnel cuántico y otros fenómenos que desafían nuestra comprensión clásica del universo.Explore el multiverso: Introdúzcase en la teoría del multiverso y sus implicaciones para nuestra comprensión de la realidad.Manifieste sus deseos: Descubra cómo los principios de la física cuántica pueden aplicarse a la intención, la visualización y las técnicas de afirmación para mejorar su vida.¿Por qué elegir este libro?Es comprensible para principiantes: Escrito en un lenguaje sencillo y atractivo, este libro pone el complejo mundo de la física cuántica al alcance de todos, independientemente de su formación científica.Una guía completa: Abarcando una amplia gama de temas, este libro proporciona una introducción completa al campo de la física cuántica y sus aplicaciones prácticas.Inspirador e informativo: Obtenga una apreciación más profunda del universo y de su lugar en él a través de la lente de la mecánica cuántica.Emprenda hoy mismo su viaje cuántico Embárquese en una aventura por el mundo subatómico y descubra las realidades ocultas que dan forma a nuestra existencia. Tanto si es nuevo en la ciencia como si ya tiene experiencia, “Física cuántica para principiantes” le ofrece valiosos conocimientos y una nueva perspectiva de los misterios del universo.Haga clic ahora en “añadir al carrito” y abra la puerta a una nueva comprensión de la realidad. Read more

Essential self-teaching guide on light and optics.The Essential Physics Self-Teaching Guide series is a comprehensive compendium to learn and master multifaceted physics topics. Read more

This book describes the design process for laser weapons and shows how power and weight are related to laser efficiency and duty cycle. The author uses example requirements to step the reader through a basic design. It was written for engineers or physicists who have no experience in the field, or for engineering students who are interested in learning about laser weapons. Readers are expected to have an understanding of optics and laser physics. This book can also be used as a teaching tool for the engineering design process. Read more

The most up-to-date book available on the physics of photonic devices This new edition of Physics of Photonic Devices incorporates significant advancements in the field of photonics that have occurred since publication of the first edition (Physics of Optoelectronic Devices). New topics covered include a brief history of the invention of semiconductor lasers, the Lorentz dipole method and metal plasmas, matrix optics, surface plasma waveguides, optical ring resonators, integrated electroabsorption modulator-lasers, and solar cells. It also introduces exciting new fields of research such as: surface plasmonics and micro-ring resonators; the theory of optical gain and absorption in quantum dots and quantum wires and their applications in semiconductor lasers; and novel microcavity and photonic crystal lasers, quantum-cascade lasers, and GaN blue-green lasers within the context of advanced semiconductor lasers.Physics of Photonic Devices, Second Edition presents novel information that is not yet available in book form elsewhere. Many problem sets have been updated, the answers to which are available in an all-new Solutions Manual for instructors. Comprehensive, timely, and practical, Physics of Photonic Devices is an invaluable textbook for advanced undergraduate and graduate courses in photonics and an indispensable tool for researchers working in this rapidly growing field. Read more

This book provides comprehensive coverage of the new wide-bandgap semiconductor gallium oxide (Ga₂O₃). Ga₂O₃ has been attracting much attention due to its excellent materials properties. It features an extremely large bandgap of greater than 4.5 eV and availability of large-size, high-quality native substrates produced from melt-grown bulk single crystals. Ga₂O₃ is thus a rising star among ultra-wide-bandgap semiconductors and represents a key emerging research field for the worldwide semiconductor community.Expert chapters cover physical properties, synthesis, and state-of-the-art applications, including materials properties, growth techniques of melt-grown bulk single crystals and epitaxial thin films, and many types of devices. The book is an essential resource for academic and industry readers who have an interest in, or plan to start, a new R&D project related to Ga₂O₃. Read more

Praise for the 1st Edition:"well written and up to date…. The problem sets at the end of each chapter reinforce and enhance the material presented, and may give students confidence in handling real-world problems." ―Optics & Photonics News"rigorous but simple description of a difficult field keeps the reader’s attention throughout…. serves perfectly for an introductory-level course." ―Physics TodayThis fully revised introduction enables the reader to understand and use the basic principles related to many phenomena in nonlinear optics and provides the mathematical tools necessary to solve application-relevant problems. The book is a pedagogical guide aimed at a diverse audience including engineers, physicists, and chemists who want a tiered approach to understanding nonlinear optics. The material is augmented by numerous problems, with many requiring the reader to perform real-world calculations for a range of fields, from optical communications to remote sensing and quantum information. Analytical solutions of equations are covered in detail and numerical approaches to solving problems are explained and demonstrated. The second edition expands the earlier treatment and includes:A new chapter on quantum nonlinear optics.Thorough treatment of parametric optical processes covering birefringence, tolerances and beam optimization to design and build high conversion efficiency devices.Treatment of numerical methods to solving sets of complex nonlinear equations.Many problems in each chapter to challenge reader comprehension.Extended treatment of four-wave mixing and solitons.Coverage of ultrafast pulse propagation including walk-off effects. Read more

The laser power handling capacities of optical systems are determined by the physical properties of their component materials. At low intensity levels these factors are not important, but an understanding of damage mechanisms is fundamental to good design of laser products operating at high power. Laser Induced Damage of Optical Materials presents a comprehensive overview of the damage processes that occur at high laser intensity levels and explains how these factors limit the energy handling capabilities of optical systems. The first two chapters of the book review basic EM theory, and consider optical effects, including absorption and scattering processes, that occur at low and medium energy levels. Chapter 3 describes the damage mechanisms that come into effect when intensity levels are raised. Chapter 4 discusses the central theory for the definition and measurement of the laser-induced damage thresholds of optical materials. This covers both thermal damage and dielectric breakdown as a function of absorption and laser pulse length and spot size. The following chapters are devoted to surfaces and sub-surface damage, coatings, measurement techniques, and special topics such as scaling and the importance of using the correct measurement unit systems. Laser Induced Damage of Optical Materials is an invaluable resource to those working with optical systems where high laser intensity is a factor. Read more