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Electromagnetism
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Static Electricity Projects
Site devoted to projects utilizing static electricity (motors, generators) which are simple enough and can be relatively easily built.
http://www.eskimo.com/~billb/emotor/statelec.html
Hovemere Ltd
Scientific instrument company specialising in Optical and Electronic Measurement Systems, UK.
http://www.hovemere.com/
CEDRAT
Provides a fully integrated line of tools, products and services in electrical engineering.
http://www.cedrat.com/
VRML Gallery of Electromagnetism
Visualization of the electromagnetic field.
http://physics.syr.edu/courses/vrml/electromagnetism/
How a Compass Works
Explanation of how compasses work and how to make your own, from How Stuff Works.
http://www.howstuffworks.com/compass.htm
How Van de Graaff Generators Work
Description of Van de Graaff generators and static electricity, from How Stuff Works.
http://www.howstuffworks.com/vdg.htm
Electromigration
Surface electromigration refers to the directed motion of atoms (adatoms) at solid surfaces, grain boundaries and interfaces which is caused by an electric current in the bulk of the material. It is considered a key factor determining the reliability of integrated circuits.
http://www.theo-phys.uni-essen.de/tp/forsch/krug.html
Negative Permittivity and Permeability Material
The true "left handed" material is described. In this medium, light waves are expected to exhibit a reverse Doppler effect.
http://www.aip.org/enews/physnews/2000/split/pnu476-1.htm
Electricity Fun
Fun projects demonstrating electrical principles. Great for kids!
http://cdelker.tripod.com/electric/
Electrostatics equations
Main equations and formulas of electrostatics.
http://electron6.phys.utk.edu/phys594/Tools/e&m/summary/electrostatics/electrostatics.html#Properties%20of%20conductors%20in%20electrostatic
EMCoS - Electromagnetic Consulting and Software
The company specializes in consulting on electromagnetic problems and in development of sophisticated software for electromagnetic simulations, as well as in data processing and visualization. Based in Tbilisi, Georgia.
http://www.emcos.com
Electromagnetic Inertia
Derivation and proof of the inertial properties of electrostatic and magnetostatic fields.
http://www.mariner.connectfree.co.uk/html/e_m_inertia.html
Rail Gun
This page covers relevant techniques in electromagnetic propulsion, but the construction of a rail gun is a perilous undertaking so use the information contained herein at your own risk.
http://home.insightbb.com/~jmengel4/rail/rail-intro.html
Nijmegen-Amsterdam High Field Magnet Laboratory (HFML)
Research in very High Magnetic Field facility.
http://www-hfml.sci.kun.nl/
Maxwell's Equations
Description of Maxwell's equations.
http://rd11.web.cern.ch/RD11/rkb/PH14pp/node108.html
Wondermagnet.com
Images of magnets and their uses, experiments, a discussion board about magnet-related topics, and an elementary primer on magnetism and magnetic physics.
http://www.wondermagnet.com/
Foresight - Exploiting the Electromagnetic Spectrum
The Foresight programme plans to take a broad view of the spectrum, from radio frequencies, through visible light, to x-ray, and its potential future exploitation.
http://www.foresight.gov.uk/emspec.html
Electromagnetic Radiation Spectrum Poster
A poster of all known ranges of EMR including gamma rays, x-rays, ultraviolet light, visible light, infrared, microwaves, radio waves.
http://unihedron.com/projects/spectrum/
Wireless Lab at Nizhny Novgorod University
Laboratory of Physical Fundamentals and Technologies of Wireless networks at Nizhny Novgorod State University, Russia.
http://www.wl.unn.ru
Is it Possible to Generate Electricity Directly from Heat?
A brief explanation from How Stuff Works.
http://www.howstuffworks.com/question136.htm
How Solar Cells Work
Principles of operation of silicon photovoltaic cells.
http://www.howstuffworks.com/solar-cell.htm
X-ray Optics and Microscopy at Stony Brook
Research describing use of coherent soft X-rays for optics experiments, including Fresnel zone plates, to produce the smallest focused spot of electromagnetic waves for studies of biological and materials science specimens.
http://xray1.physics.sunysb.edu/
Science Ebooks Ezine
This site offers a variety of electronics and physics animations and visual aides for teachers or students.
http://www.science-ebooks.com
Applied Computational Electromagnetics Society
ACES provides a forum for issues relevant to numerical modeling in applied electromagnetics.
http://aces.ee.olemiss.edu/
CdTe Gamma Detectors Equipped With Ohmic Contacts
Gamma induced currents in CdTe and CdZnTe semiconductor detectors equipped with ohmic contacts are not sensitive to hole trapping.
http://members.tripod.com/~urila/cdte.htm
Maxwell's Equations and Electromagnetic Waves
An overview of Maxwell's Equations and how they determine the speed of light.
http://www.phys.virginia.edu/classes/109N/more_stuff/Maxwell_Eq.html
Electricity and Magnetism
An excerpt of a set of online course notes focusing on electricity and magnetism.
http://theory.uwinnipeg.ca/mod_tech/node83.html
Electromagnetic Spectrum
A NASA site listing the various wavelengths of electromagnetic radiation.
http://imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.html
The Van de Graaff Generator Website
This site includes information on how Van de Graaff Generators work and instructions for building one. There are pictures of one built using these steps.
http://members.aol.com/chengas123/index.htm
Motion in an Electromagnetic Field
A JAVA applet which allows the user to vary the magnetic and electric fields, and then launch a test particle and study its ( nonrelativistic ) motion.
http://www3.adnc.com/~topquark/fun/JAVA/electmag/electmag.html
Paradoxes of Modern Electrodynamics
Provides analysis of some modern electrodynamics concepts including peculiarities and «white spots» in the model of an electromagnetic wave. The site is in English and Russian.
http://www.pwaves.0catch.com
The Electromagnetic Field Tensor
A page of notes on advanced methods of electromagnetism
http://www.mth.uct.ac.za/omei/gr/chap4/node7.html
Visualizing Magnetic Fields: Numerical Equation Solvers in Action
A book (with CD) describing modeling and visualization of magnetic fields. Also described are the numerical algorithms used for solving the equations.
http://www.vizimag.homestead.com
Magnet Formulas
A small web site devoted to the vanishing art of practical magnet design without FEA, including field formulas for simple conductor configurations, air core solenoids and Helmholtz Coils.
http://www.netdenizen.com/emagnet/
Electromagnetism
Authors' web pages for the textbook "Electromagnetism", by G. L. Pollack and D. R. Stump, published by Addison-Wesley.
http://www.pa.msu.edu/people/stump/EM/
Magnet University
Educational information on electromagnetism, permanent magnets, and the application of magnetic materials. The site is maintained by the company Rare-Earth Magnetics.
http://www.rare-earth-magnets.com/magnet_university/magnet_university.htm
How a metal detector works
Interactive Java tutorial explaining the principles of electromagnetic induction.
http://micro.magnet.fsu.edu/electromag/java/detector/
Vacuum Tube Diode
A demonstration of how a vacuum tube diode works.
http://micro.magnet.fsu.edu/electromag/java/diode1/
Electromagnetic Induction
A virtual experiment on creating electric current with a changing magnetic field.
http://micro.magnet.fsu.edu/electromag/java/faraday2/
Basic Electronics
Online book which covers topics from ohms law to digital circuits. Contains interactive troubleshooting simulations.
http://science-ebooks.com/electronics/basic_electronics.htm
Differential Forms in Electromagnetic Theory
The differential forms research group at BYU is investigating the use of the calculus of differential forms in teaching and research. Differential forms have been used to express Maxwell's laws since early in this century, but many of the advantages of forms as a tool for applied electromagnetics have only recently been discovered.
http://www.ee.byu.edu/ee/forms/forms-home.html
How an Electromagnet Works
Explanation of principles and experiments, from How Stuff Works.
http://www.howstuffworks.com/electromagnet.htm
Electrodynamics in Relativistic Notation
Describes Lorentz scalars, covariant and contravariant vectors and tensors, and how to use relativistic notation to describe charge conservation and the inhomogenous wave equation for potentials.
http://electron6.phys.utk.edu/phys594/Tools/e%26m/summary/relativistic/relativistic.html
Spin Science
Research conducted at the University of Amsterdam utilizing x-ray magneto-optical techniques for the study of thin film and nanometric magnetic systems.
http://www.science.uva.nl/research/cmp/goedkoop/group/index.html
Electromagnetism Formulas
Provides a numbered list of equations.
http://cipres.cec.uchile.cl/~jacuna/Electro_e.pdf
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