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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.
Poster: Electromagnetic Radiation Spectrum (Cat. #A500) ..... $9.95
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
Electromagnetics for Engineers (Cat. #A560) ............... $24.95
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.
ELECTRICITY 2 (Cat. #A561)
$19.95
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
EMF Measurement in the Near Field (Cat. #A538)
.............. $89.00 The following items are available from other websites. We provide this information as a courtesy. These websites have no affiliation with Less EMF Inc. Proceed at your own risk:
 lessemf@lessemf.com
Copyright 1996-2017, Less EMF Inc. |
Giga-, kilo- and micro- got your head swimming?
by Hubert Trzaska
