The inclusion of an electrical measurement course in the undergraduate curriculum of electrical engineering is important in forming the technical and scientific knowledge of future electrical engineers. This book explains the basic measurement techniques, instruments, and methods used in everyday practice. It covers in detail both analogue and digital instruments, measurements errors and uncertainty, instrument transformers, bridges, amplifiers, oscilloscopes, data acquisition, sensors, instrument controls and measurement systems. The reader will learn how to apply the most appropriate measurement method and instrument for a particular application, and how to assemble the measurement system from physical quantity to the digital data in a computer. The book is primarily intended to cover all necessary topics of instrumentation and measurement for students of electrical engineering, but can also serve as a reference for engineers and practitioners to expand or refresh their knowledge in this field.

Cryogenic Freezing Manual is a useful tool to the plant engineer or plant manager who is studying the cryogenic freezing process to either run the in plant Liquid Nitrogen (LN2) freezers or is in the process of acquiring such equipment. Enough theory is included to understand how cryogenic freezing functions and how it differs from conventional Ammonia or Freon freezing.

"The New York Times" bestselling Geek Dad puts his cool spin on science experiments and projects to foster a love of science in kids.

Fans of the "New York Times bestselling "Geek Dad" and "The Geek Dad's Guide to Weekend Fun" will flock to the 3.0 version, "The Geek Dad Book for Aspiring Mad Scientists." As Ken Denmead explains, most kids lack an understanding of science and an awareness of how it influences our everyday lives. What kids today need is a fun way to learn scientific concepts. This book will help scientists-in-the- making discover how our world works with creative project ideas, including how to:
? Grow crystals to power your Stargate and set your room aglow
? Extract your own DNA and decode your genes
? Build a MacGyver radio from nothing but cast-off electrical and office supplies

Chock-full of instructional illustrations throughout, "The Geek Dad Book for Aspiring Mad Scientists" puts the fun back in science.

It does matter. The false religion promoted by school systems and the media around the world has caused a decline in the morals of many nations. Generations of misleading, even false science teaching has created an apathetic population without a clear understanding of history or hope for the future. I am neither theologian nor highly educated scientist but, I have read their words and found that those re-inventing the Bible are highhandedly pushing their made up version of science while denying any argument, or even this debate, in public schools. The scientific definitions are provided by highly educated professors, creationist and evolutionist. There is an interesting difference, And it does matter.

The present volume is a simple record of the pioneer work done in such departments up to date, by Mr. Nikola Tesla, in whom the world has already recognized one of the foremost of modern electrical investigators and inventors. No attempt whatever has been made here to emphasize the importance of his researches and discoveries. Great ideas and real inventions win their own way, determining their own place by intrinsic merit. But with the conviction that Mr. Tesla is blazing a patli that electrical development must follow for many years to come, the compiler has endeavored to bring together all that bears the impress of Mr. Tesla's genius, and is worthy of preservation. Aside from its value as showing the scope of his inventions, this volume may be of service as indicating the range of his thought. There is intellectual profit in studying the push and play of a vigorous and original mind. Although the lively interest of the public in Mr. Tesla's work is perhaps of recent growth, this volume covers the results of full ten years. It includes his lectures, miscellaneous articles and discussions, and makes note of all his inventions thus far known, particularly those bearing on polyphase motors and the effects obtained with currents of high potential and high frequency. It will be seen that Mr. Tesla has ever pressed forward, barely pausing for an instant to work out in detail the utilizations that have at once been obvious to him of the new principles he has elucidated. Wherever possible his own language has been employed. It may be added that this volume is issued with Mr. Tesla's sanction and approval, and that permission has been obtained for the re-publication in it of such papers as have been read before various technical societies of this country and Europe. Mr. Tesla has kindly favored the author by looking over the proof sheets of the sections embodying his latest researches.

In the 1920's radio was new and this little book quickly became a guide to the excitement of what was then new and thrilling. Relive those early days of radio by looking over some of the more favorite receiving circuits of that period. Follow the path from crystal radios to a 5-tube nutrodyne.

AN INTRODUCTION TO The Theory and Use of the Microscope BY C. R. MARSHALL, M. A., M. D., LL. D. Professor of Materia Medico, and Therapeutics in the University of Aberdeen. AND H. D. GRIFFITH, B. A. Carnegie Teaching Fellow in Natural Philosophy in the University of Aberdeen. WITH TWENTY-NINE FIGURES IN THE TEXT AND THREE PLATES LONDON GEORGE ROUTLEDGE SONS, LTD. BROADWAY HOUSE 68-74 CARTER LANE, E. G. PRINTED IN GREAT BRITUN BY W. JOLLY AND SONS, LTD., ABERDEEN. FOREWORD. THE inspiration of this brochure was the institution of lectures and practical work on Microscopy as part of the class of Medical Physics in the University of Aberdeen. It was felt that a small textbook covering the work of the systematic lectures would be helpful . to the student and might aid him to realize the capabilities, limitations and proper method of use of the instrument. A chapter on the elementary mathematical treat ment of certain problems discussed in the text has been added. It is hoped that the work will prove of value to all students who require a microscope in their studies as well as to those amateur microscopists who wish to understand the fundamental principles on which Microscopy is based. C. R. M. H. D. G. January, 1928. CONTENTS. PAGE. INTRODUCTION i 10 The Simple Convex Lens Formation of the Image The Influence of the Eye Visibility of Objects The Simple Microscope The Compound Microscope. THE LENSES OF THE MICROSCOPE . . . n 32 Chromatic Aberration Spherical Aberration. OBJECTIVES. Achromatic, Semi-apochromatic, Apochromatic Focal Length Numerical Aperture Depth of Focus Working Distance Flatness of Field. EYEPIECES. Huyghenian Positive-Ramsden Disc Magnifying Power. CONDENSERS. AbbeAchromatic - Critical Illumination Focal Length Dark Ground Condensers Ultra Microscopy. RESOLUTION 33 36 Limit of Microscopic Vision Ultra-Violet Microscopy Abbes Diffraction Theory. THE STAND 37 44 The Foot The Stage The Substage The Body The Nose Piece The Limb Choice of Stand Choice of Objectives Choice of Eyepieces Testing Objectives. ILLUMINANTS 45 49 Illumination of Transparent Objects Dark Ground Effects Oblique Illumination Illu ination of Opaque Objects, vili. CONTENTS ADJUSTMENT 50 56 Adjustment of Mirror Focusing of Condenser Centering of Condenser Adjustment of Iris Diaphragm Adjustment of Tube Length Changing Objectives Changing Eyepieces Care of the Microscope., MlCROMETRY 57 62 Stage and Eyepiece Micrometers Photo-Micrography Measurement of Magnification Drawing Eyepieces Measurement of Thick ness. SPECTROSCOPY . ... 6364 SPECIAL MICROSCOPES ...... 65 72 The Metallurgical Microscope The Petro logical Microscope. Binocular Microscopes Greenough Wenham, Compound Prism Abbes Stereoscopic Eye piece Binocular Vision Binocular Rivalry. PHYSICAL PROOFS 73 84 Magnification Numerical Aperture Depth of Focus Ramsden Circle Chromatic Correction Sine Condition and Aplanatism Resolution. INDEX, 85 90 PLATES to face pp. 6, 28, 36 AN INTRODUCTION TO THE THEORY AND USE OF THE MICROSCOPE. THE function of the microscope is to reveal detail of the structure of objects too small to be visible to the unaided eye. This end is attained by the use of a series of lenses which make the object appear magnified to the observer. The magnification to be of value must extend to the finest detail of the object and each successive stage of magnification should reveal structure invisible without its aid.So-called c resolution J of detail in an object does not of necessity result from mere optical magnification. Magnification is necessary to attain it, but other factors are involved. It is the aim of this brochure to explain the principles of microscopy and the manipulations by which resolution is obtained. For these purposes it is essential to consider first certain properties of the simple convex lens, and some of the conditions governing the visibility of objects. THE SIMPLE CONVEX LENS...

This book is a facsimile reprint and may contain imperfections such as marks, notations, marginalia and flawed pages.

In 1987, Barry Lynes wrote the classic book on Rife history called The Cancer Cure That Worked. Rife's World of Electromedicine is the sequel, published in 2009. What is the difference between the two books? The Cancer Cure That Worked was primarily a biographical account of Royal Raymond Rife's life and work, including detailed, dated records of the events which occurred, and in-depth accounts from the people involved. Rife's World of Electromedicine, on the other hand, is a bird's eye view, short summary of the same time period and events. Instead of a detailed biography, Rife's World is an expository piece that includes brief, targeted chapters addressing each aspect of Rife's era, utilizing piercing, specific, and direct quotes and excerpts from historical documents including magazine and newspaper articles, court transcripts, Rife's own statements, and the eye-witness accounts of those who were present during Rife's lifelong achievements. Written as a short story, Rife's World is affordably priced so that everyone can read about Royal Raymond Rife. The book is a perfect gift for someone who wants to find out more about Rife but doesn't have time to read a longer book. Additionally, the new book explains what 20] years of additional research and document retrieval by a dedicated grass roots group have discovered and unearthed. Some of the previously missing, key factors in the suppressed and censored cure for cancer were lost or even locked away in physicians' closets for decades in order to prevent censors from destroying overwhelming evidence. Now, this evidence is printed for the first time in Rife's World.

The discovery of nuclear magnetic resonance earned Felix Bloch and Ed Purcell the 1952 Nobel Prize in Physics. What their discovery took advantage of, is that protons are the world's smallest magnets. These tiny magnets can also be used to make a magnetometer, of the type described in this book. This book describes how to build a proton precession magnetometer, suitable for measurements of the Earth's magnetic field. This method of measuring magnetic fields offers the theoretically highest possible precision, limited only by the known value of the gyromagnetic ratio of the proton. Uses of the magnetometer include: making precise measurements of the Earth's magnetic field, calibrating low field magnetometers, teaching modern signal processing techniques, demonstrating nuclear magnetism and NMR to students, and measuring nuclear magnetic relaxation in liquids. The Earth's field proton precession magnetometer, called the Magnum, described in this book, was formerly a commercial product, developed and sold by Exstrom Laboratories LLC. It was designed by Stefan Hollos and Richard Hollos.

For folks who wonder why they keep tossing odds and ends in that junk drawer in the kitchen, "Sneakiest Uses for Everyday Things" offers evidence that technology doesn't always have to come from Best Buy, Amazon.com, or Microsoft." --"U.S. News and World Report
"
* Putterers, would-be inventers, and science-fair parents rejoice as Cy Tymony offers fifty new projects to bring out your inner MacGyver.
In the third book in Cy Tymony's Sneaky Uses series you will learn how to turn a piece of paper into a Frisbee, a business card into a boomerang, a TV tray into a robot, and more.
* Beginning with a complete list of materials and continuing through easy-to-follow step-by-step instructions paired with helpful illustrations, most projects will be completed in just minutes using common items found around the house.
* Teachers, parents, scout leaders, and enterprising youngsters will use their ingenuity to turn ordinary, everyday objects into something extraordinary, like a pencil into a microphone, Walkman ear buds into an intercom, or a telephone cord into a motor. The book also includes bonus alternative-energy projects and a foreword by NPR's Science Friday host Ira Flatow.

The scanning tunneling microscope and the atomic force microscope, both capable of imaging and manipulating individual atoms, were crowned with the Nobel Prize in Physics in 1986, and are the cornerstones of nanotechnology today. The first edition of this book has nurtured numerous beginners and experts since 1993. The second edition is a thoroughly updated version of this 'bible' in the field. The second edition includes a number of new developments in the field. Non-contact atomic-force microscopy has demonstrated true atomic resolution. It enables direct observation and mapping of individual chemical bonds. A new chapter about the underlying physics, atomic forces, is added. The chapter on atomic force microscopy is substantially expanded. Spin-polarized STM has enabled the observation of local magnetic phenomena down to atomic scale. A pedagogical presentation of the basic concepts is included. Inelastic scanning tunneling microscopy has shown the capability of studying vibrational modes of individual molecules. The underlying theory and new instrumentation are added. For biological research, to increase the speed of scanning to observe life phenomena in real time is a key. Advanced in this direction is presented as well. The capability of STM to manipulate individual atoms is one of the cornerstones of nanotechnology. The theoretical basis and in particular the relation between tunneling and interaction energy are thoroughly presented, together with experimental facts.

"I've known the author circa fifty years; then, a young broad-based scientist with a good sense of humor; now, a broader-based scientist with a great sense of humor. Who better to develop an obsession with an unfunny, tantalizing, and unquantifiable topic like serendipity and produce a gem of a book analyzing its vital importance in the past and its great need in the future?" -James A. Young, chemist "Surprise I didn't see that coming P. J. Hannan has ably documented the major role of fortuitous findings in scientific progress." -Clifford M. Gordon, physicist "Hannan writes the story of serendipity in research where scientific egos, luck, and the'Hand of God' clash for credit." -Michael A. Champ, marine scientist What good might come out of a graduate student's carelessness in dropping a vial of a valuable platinum solution on the laboratory floor? Is it reasonable to think that many Nobel Prizes stemmed, at least in part, on serendipitous circumstances? These and many other situations are described in this illuminating book that will be enjoyed by all who like a good story.

The Rain Maker Device is a device that allows a user to easily create and control the weather for farming and for recreation. The technology is the product of the corroboration of Kosol Ouch, Koeun Noun Ouch, David Lowrance, Vince Panella, the celestial teachers (extraterrestrial aliens), and illustration graphics by Daniel Nissen.

This book will share with you the knowledge about, and give practical advice on how to build, the Kosol and Koeun Spherical Generator that produces free energy and antigravity and which can be used to help power the entire nation and save on electrical bills. Koeun and I hope that this knowledge and spiritual technology will help everyone throughout the planet.

In submitting to the public the following articles on water finding, by the method known as dowsing, or, with the divining rod, the authors are fully aware of the fact that, although the method has been practiced from time immemorial, and has achieved unquestionably astonishing results, it has not been accepted as proven by the scientific world, generally; and they anticipate that the following narratives will be subjected to the same kind of criticism as has been leveled against similar works in the past, especially by those who will not accept as truth, what they themselves are unable to appreciate, or prove, by certain defined & known laws.

Cryoelectron microscopy of biological molecules is among the hottest growth areas in biophysics and structural biology at present, and Frank is arguably the most distinguished practitioner of this art. CryoEM is likely over the next few years to take over much of the structural approaches currently requiring X-ray crystallography, because one can now get good and finely detailed images of single molecules down to as little as 200,000 MW, covering a substantial share of the molecules of greatest biomedical research interest. This book, the successor to an earlier work published in 1996 with Academic Press, is a natural companion work to our forthcoming book on electron crystallography by Robert Glaeser, with contributions by six others, including Frank. A growing number of workers will employ CryoEM for structural studies in their own research, and a large proportion of biomedical researchers will have a growing interest in understanding what the capabilities and limits of this approach are.

This book provides a comprehensive account of the theory of image formation in a confocal fluorescence microscope as well as a practical guideline to the operation of the instrument, its limitations, and the interpretation of confocal microscopy data. The appendices provide a quick reference to optical theory, microscopy-related formulas and definitions, and Fourier theory.

Half a million years ago our ancestors learned to make fire from scratch. They crafted intricate tools from stone and brewed mind-altering elixirs from honey. Their descendants transformed clay into pottery, wool into clothing, and ashes into cleansers. In ceramic crucibles they won metal from rock, the metals lead to colored glazes and glass. Buildings of brick and mortar enshrined books of parchment and paper. Kings and queens demanded ever more colorful clothing and accessories in order to out-class clod-hoppers and call-girls. Kingdoms rose and fell by the power of saltpeter, sulfur, and charcoal. And the demands of everyday folk for glass and paper and soap stimulated the first round of chemical industrialization. From sulfuric acid to sodium carbonate. From aniline dyes to analgesic drugs. From blasting powder to fertilizers and plastics. In a phrase, From Caveman to Chemist. Your guides on this journey are the four alchemical elements; Fire, Earth, Air and Water. These archetypical characters deliver first-hand accounts of the births of their respective technologies. The spirit of Fire, for example, was born in the first creature to cultivate the flame. This spirit passed from one person to another, from one generation to another, from one millennium to another, arriving at last in the pages of this book. The spirit of Earth taught folks to make tools of stone, the spirit of Air imparted knowledge of units and the spirit of Water began with the invention of spirits. Having traveled the world from age to age, who can say where they will find their next home? Perhaps they will find one in you.