US vows 'huge' marine protection

The US is to establish "the largest area of protected sea in the world", banning fishing and mining, around its Pacific islands.

news.bbc.co.uk

Venomous mammal caught on camera

Rare footage of one of the world's most strange and elusive mammals is captured by scientists.

news.bbc.co.uk

'Wolfman' returns

Explorer Jim McNeill tracks down Arctic wolves

news.bbc.co.uk

First flight of algae-fuelled jet

Continental Airlines is the latest to test fly a jet biofuel, this time with a product derived partially from algae.

news.bbc.co.uk

Beagle hunter

On a mission to find the most famous ship of science

news.bbc.co.uk

Earth Watch

Why it is hard to predict sudden environmental crises

news.bbc.co.uk

Tech fair offers greener vision

Analysts at the Consumer Electronics Show say green credentials of tech products will become critical to success.

news.bbc.co.uk

Black holes 'preceded galaxies'

Astronomers believe they have solved a cosmic chicken-and-egg question: what came first - black holes or galaxies?

news.bbc.co.uk

Panda bites his third tourist in two years at Beijing zoo

A panda at Beijing zoo bites a man for the third time in two years.

news.bbc.co.uk

Mosquitoes make sweet love music

Sexy songs sung by mosquitoes in courtship could be key to curbing the spread of dengue fever, say scientists.

news.bbc.co.uk

Zimbabwe troops 'eat elephants'

A Zimbabwean wildlife campaigner tells the BBC that soldiers are being given elephant meat to eat, as the economic crisis deepens.

news.bbc.co.uk

Body repair 'could be ramped up'

A combination of drugs could trick the body into sending its repair mechanisms into overdrive, say scientists.

news.bbc.co.uk

China alert over bird flu death

Chinese authorities shut down and clean poultry markets in Hebei province, after the first human death in nearly a year.

news.bbc.co.uk

Holes give edge to new armour

Scientists from the UK Ministry of Defence (MoD) have devised ultra-hard vehicle armour to protect military personnel.

news.bbc.co.uk

Eat it or lose it - why centuries of crop diversity are at risk

Centuries of crop diversity are at risk of being lost forever as farmers turn to just a few modern, high yielding varieties.

news.bbc.co.uk

A deep-sea fish caught in the Pacific has mirrors for eyes

A deep-sea fish caught in the Pacific has eyes which use mirrors as well as lenses, scientists discover.

news.bbc.co.uk

Baby Jupiter's huge weight gain

The planet Jupiter must have gained mass fast during its infancy, according to astronomers.

news.bbc.co.uk

Animal matters

Scotland's debate over tests on primates

news.bbc.co.uk

Poetry or science?

Is romantic love just a chemical cocktail?

news.bbc.co.uk

Heat may spark world food crisis

Half the world's population could face food crisis by 2100 as soaring temperatures cripple staple crops, scientists warn.

news.bbc.co.uk

Mummy of female pharaoh uncovered

Egyptologists find remains of a mummy thought to belong to a queen who ruled 4,300 years ago, Egypt's antiquities chief announced.

news.bbc.co.uk

Canadians claim South Pole record

A trio of Canadians claim a new record for the fastest trek across Antarctica to the South Pole.

news.bbc.co.uk

Everest trip helps critically ill

Blood oxygen levels recorded on a trip by medics to Everest could help the treatment of critically ill patients.

news.bbc.co.uk

Feilden's blog

Ground-breaking new technique in stem cell science

news.bbc.co.uk

Our writers talk back

Some of the previous contributors to the Green Room respond to readers' questions and comments.

news.bbc.co.uk

 Science > Electromagnetism

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Science > Electromagnetism

Electromagnetism:

Applied Computational Electromagnetics Society

ACES provides a forum for issues relevant to numerical modeling in applied electromagnetics.

http://aces.ee.olemiss.edu/

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

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

Graand

Free Classified Ads Portal

www.graand.com

CEDRAT

Provides a fully integrated line of tools, products and services in electrical engineering.

http://www.cedrat.com/

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

The Electric Ship Research and Development Consortium

Combined programs and resources of leading electric power research institutions for research on near to mid-term electric ship concepts. The Office of Naval Research manages the ESRDC.

http://esrdc.caps.fsu.edu

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

Electricity from Lightning

Site addresses the power of lightning, and the question of how to harness that power, whether there are substantial reasons not to.

http://peswiki.com/index.php/Directory:Lightning_Power

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

The Electromagnetic Field Tensor

A page of notes on advanced methods of electromagnetism

http://www.mth.uct.ac.za/omei/gr/chap4/node7.html

Electromagnetic Induction

A virtual experiment on creating electric current with a changing magnetic field.

http://micro.magnet.fsu.edu/electromag/java/faraday2/

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

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/

Electromagnetic Railgun System

Design, construction and theory of electromagnetic railgun. Matthew Massey's Web Site.

http://www.matthewmassey.com/

Electromagnetic Spectrum

A NASA site listing the various wavelengths of electromagnetic radiation.

http://imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.html

Electromagnetic spectrum redefined

Bharat radiation from excited atoms of radioisotopes and XRF sources is a new part of electromagnetic spectrum.

http://www.geocities.com/raomap/discovery5.html

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/

Electromagnetism

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

Electrostatic Solutions Ltd

Static electricity information and expertise, ESD in electronics manufacture, how to avoid electrostatic fires, ESD training, research and consultancy.

http://www.electrostatics.net

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

EMF Shielding in Buildings

Remediation of EMF interference in buildings. Custom designed, quality EMF shielding.

http://brookesems.com.au

High Field Magnet Laboratory (HFML)

Research in the high magnetic field facility in Nijmegen, the Netherlands.

http://www.hfml.sci.ru.nl/

Hovemere Ltd

Scientific instrument company specialising in Optical and Electronic Measurement Systems, UK.

http://www.hovemere.com/

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 a metal detector works

Interactive Java tutorial explaining the principles of electromagnetic induction.

http://micro.magnet.fsu.edu/electromag/java/detector/

How an Electromagnet Works

Explanation of principles and experiments, from How Stuff Works.

http://www.howstuffworks.com/electromagnet.htm

How Solar Cells Work

Principles of operation of silicon photovoltaic cells.

http://www.howstuffworks.com/solar-cell.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

Is it Possible to Generate Electricity Directly from Heat?

A brief explanation from How Stuff Works.

http://www.howstuffworks.com/question136.htm

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/

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

Maxwell's Equations

Description of Maxwell's equations.

http://rd11.web.cern.ch/RD11/rkb/PH14pp/node108.html

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

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

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

PowerLabs Rail Gun

Electromagnetic capacitor powered 20kJ rail gun research.

http://www.powerlabs.org/railgun2.htm

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

Solar (photovoltaic) cells

The site of Norwegian University describing principles of operation of solar cells, photovoltaic effect, pn junctions, generation and recombination.

http://org.ntnu.no/solarcells/

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

Static Electricity

Website by Jeremy Smallwood on static electricity. Describes the physics phenomena, possible electrostatic damages, materials for electrostatic solutions, and standards. Gives advice on solution of common problems.

http://homepages.pavilion.co.uk/jeremys/

Static Electricity Projects

Site devoted to projects utilizing static electricity (motors, generators) which are simple enough and can be relatively easily built.

http://www.amasci.com/emotor/statelec.html

Vacuum Tube Diode

A demonstration of how a vacuum tube diode works.

http://micro.magnet.fsu.edu/electromag/java/diode1/

The Van de Graaff Generator Website

Information on how Van de Graaff Generators work, typical classroom demonstrations, and instructions for building one.

http://www.amasci.com/emotor/vdg.html

VRML Gallery of Electromagnetism

Visualization of the electromagnetic field.

http://physics.syr.edu/courses/vrml/electromagnetism/

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

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/

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/