Want to know how long is a microwave wavelength? Interested in what is going on at different EM frequencies? This finely detailed poster relates all known ranges of EMR including gamma rays, X-rays, ultraviolet light, visible light, infrared, microwaves, radio waves (ULF, VLF, LF, MF, HF, long, short, HAM, VHF, UHF, SHF, EHF), cosmic microwave background radiation and brain waves, all organized by octaves. The audio frequency spectrum is also included. Reference to everyday items such as music, brainwaves, football fields and cellphones makes understanding EMR easier. Colorful descriptions are included for all ranges and properties of EMR including reflection, refraction, LASER, television, gravity waves, emission and absorption. There is also a handy chart of SI unit prefixes ranging from yocto to yotta (this is the "Giga, kilo, micro part).
24" x 36" professionally printed posters on 100lb glossy paper suitable for framing. Great for home, office, or classroom.
Explains the basic concepts, fundamental principles and characteristic behaviors of electric and magnetic fields as they pertain to biologic systems to those who do not have a background in calculus and differential equations. The emphasis is qualitative and graphical rather than mathematical. Requires only an algebra background and offers practical rule of thumb concepts to help the reader understand real life situations. Covers the entire spectrum from DC up through optical frequencies. 200 pages, 1999.
Designed to give readers the building blocks of electricity concepts, the sequence of topics and practical applications in this book will provide a solid foundation in electron theory and movement, direct-current series circuits, parallel circuits, series-parallel circuits, voltage line drops, rotating machinery fundamentals, and more!
Numerous circuit diagrams appear throughout the book, along with photographs of electrical devices and materials. This edition also features several new sample problems to illustrate troubleshooting methods, plus new unit summaries and more extensive review questions. A thorough section on electrical energy and power is also included. The uniquely reader-friendly presentation style makes this edition ideal for a first-course in basic electricity, house wiring, or commercial installations.
Building on the foundation established in Electricity 1, this book goes on to explore alternating current principles and important concepts of inductive reactance, capacitive reactance, and impedance. Completely updated to the 2005 National Electrical Code, Electricity 2 acquaints newcomers to the field with various types of alternating current circuits, while developing a solid understanding of the concepts of power, power factor, and power factor correction. Sample problems and solutions at the end of each unit provide a direct route to understanding as readers apply key electrical principles in realistic troubleshooting situations.
In this book, internationally respected EMF measurement expert Hubert Trzaska discusses the specific problems of EMF measurements in the often confusing near field and the main factors limiting measurement accuracy. Book describes methods that provide accurate data to aid the development of new, improved standards. Measuring methods are examined for electric fields and magnetic fields; measurement discussions include power density and photonic EMF measurements. 232 pages, 2001
Textbook which covers calculations for transmission lines, fields and field operators, the electrostatic field, the magnetostatic field, time-varying fields, electro-dynamics, plane waves, guided waves, radiation, and more. Highly technical, lots of math. 412 pages. 1990
Few subjects in science are more difficult to understand than magnetism, according to Encyclopedia Britannica. However, there is a strong demand today for scientists and engineers with skills in magnetism because of the growing number of technological applications utilizing this phenomenon. This textbook responds to the need for a comprehensive introduction of the basic concepts of the science.
Introduction to Magnetism and Magnetic Materials has been thoroughly revised since the first edition to include recent developments in the field. The early chapters comprise a discussion of the fundamentals of magnetism. These chapters include more than 60 sample problems with complete solutions to reinforce learning. The later chapters review the most significant recent developments in four important areas of magnetism: hard and soft magnetic materials, magnetic recording, and magnetic evaluation of materials. These later chapters also provide a survey of the most important areas of magnetic materials for practical applications. Extensive references to the principal publications in magnetism are listed at the end of each chapter, which offer the reader rapid access to more specialized literature.
Introduces each section with a question that is subsequently answered through the text of the section. Reinforces learning with more than 60 sample problems and complete solutions. Lists extensive references to principal publications in magnetism at the end of each chapter. Covers topics such as magnetic fields, magnetic measurements, magnetic materials, magnetic properties, hard and soft magnetic materials, and magnetic recording. Offers an unparalleled assessment of magnetic properties and applications
Students in various scientific areas will benefit from this book, including those in physics, materials science, metallurgy, and electrical engineering. 1998. 568 pages
Essentially in two parts, this book will help readers to gain an appreciation of the physical effects of electric and magnetic fields. The first part covers the basic theory of electrostatics, electromagnetism, and electroconductive fields, and applies the theory to different transmission lines. The second part covers the physical effects of dielectrics and ferrous materials on capacitors and coils. It is truly introductory with very little prior knowledge assumed. Includes numerous worked examples and problems. Geared for an engineering understanding of the subject (lots of math).
Want to understand how electric field shielding differs from magnetic field shielding? This CRC handbook explains the basic concepts underlying electromagnetic properties of materials and discusses in detail how to use these materials in various applications. Examples include materials used for electric and magnetic field shielding, radar absorbing materials, ferromagnetic materials, properties of bioelectromagnetic phantoms (used for calculating SARs), and much more. Great for understanding exactly how electromagnetic fields interact with materials. Good descriptive text with very little math. Lots of tables, charts and graphs, aimed at practical applications. 608 pages. 1995.
Copyright 1996-2012, Less EMF Inc.