Electromagnetism
Scientific Concept
Energy-wise appliances save more than time, money...continues to be incorporated into more ovens. Induction elements on cooktops are 30 percent more efficient than electric. They use electromagnetism to heat iron-based cookware, leaving the cooktop surface and the element relatively cool. In this article: DOE, GE, Operating costs, Electromagnetism, Convection, Environmental Protection Agency, and EPA |
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San Francisco Chronicle | 3 days ago
A permanent defense against drywood termites
...area that uses a silica product (Dri-Out) to coat all of the interior wood in a house. The company uses a pneumatic duster to apply it and the electromagnetism causes the desiccant dust to stick to all vertical and horizontal surfaces,...
In this article: Borate, Vinegar, E-mail, Disodium octaborate tetrahydrate, San Francisco, and San Jose
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Science Blog - | November 19, 2009
The Theory of Everything, Physics
...electron and the energy equivalence of a- particles using c squared as a velocity. 7. How the quantity of a- particles relates to the effects of electromagnetism and gravity. That is the squares root decrease or the cube roots decrease in...
In this article: Photon, Electron, Speed of light, Scalar, Quark, Ether, Physics, Big Bang, Uncertainty principle, and Wave function
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BBC News | November 17, 2009
Forgotten heroes
..."unsung" hero? Plenty of people will have heard of Michael Faraday, even if they are not too familiar with his pioneering work in the field of electromagnetism. The Victorian physicist tops a list of 50 Britons whose contributions to...
In this article: Thomas Clarkson, Percy Shaw, Alan Turing, Mary Rand, Dan Snow, Francis Drake, and Mary Seacole
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New Scientist - Latest Headlines | November 11, 2009
In SUSY we trust: What the LHC is really looking for
...theory known simply as the standard model. It describes all known particles, as well as three of the four forces that act on them: electromagnetism and the weak and strong nuclear forces. It is also manifestly incomplete. We know from what...
In this article: Boson, Quark, Electron, Elementary particle, Cosmology, Photon, Neutron, Supersymmetry, and Fermion
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Daily Mail | October 31, 2009
Einstein was right! Nasa's telescope uncovers proof of space-time theory
...four. These are the 'strong force' that holds nuclei together inside atoms and the 'weak force' that is responsible for radioactive decay and electromagnetism. However gravity has always been the odd man out in this model. Though a host...
In this article: Photon, Albert Einstein, NASA, Physics, Speed of light, Electron, Nature, and Stanford University
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Guardian | October 23, 2009
Master of the universe
...or linguists or whatever who have no idea what's going to happen"). "Throw your mind back to when Faraday was working on electromagnetism, when there was apparently no use whatsoever for electricity OR magnetism. There's a famous...
In this article: Michael Green, String theory, Stephen Hawking, Mathematics, Physics, Lee Smolin, Isaac Newton, and Albert Einstein
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The Register | October 20, 2009
Cambridge string theorist to succeed Stephen Hawking
...John Schwarz of the California Institute of Technology, by showing how it could describe how disparate models for general relativity, electromagnetism, and quantum mechanics fit into a single, all-encompassing framework. "Michael Green has...
In this article: Cambridge, Physics, Cambridge University, Stephen Hawking, Mathematics, Quantum mechanics, and General relativity
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The next Stephen Hawking
...force for string theory from the start. Advocates of string theory believe it paves the way to understanding all of nature's forces, including electromagnetism, the strong force that holds atomic nuclei together, the weak force that...
In this article: Stephen Hawking, Michael Green, University of Cambridge, Cambridge, Physics, JavaScript, Royal Society, Paul Dirac, and A Brief History of Time
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Sci-fi science
In this article: Photon, Time travel, Quantum mechanics, Boson, Speed of light, Positron, Paul Dirac, and Albert Einstein
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Centre Daily Times | October 02, 2009
Research and Markets: Physics at a Glance, the Complete 1st Edition Covering Force and Energy, Energy and Its Transfer, Electromagnetism and Radioactivity and Much More
...them to memory. The book covers force and energy, energy and its transfer (including waves, electrical and thermal energy), electromagnetism and radioactivity. It goes on to describe a wide range of the practical applications of physics...
In this article: Dublin
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Description from Wikipedia:
Electromagnetism is the physics of the electromagnetic field, a field which exerts a force on particles with the property of electric charge and which is reciprocally affected by the presence and motion of such particles.
A changing magnetic field produces an electric field (this is the phenomenon of electromagnetic induction, the basis of operation for electrical generators, induction motors, and transformers). Similarly, a changing electric field generates a magnetic field.
The magnetic field is produced by the motion of electric charges, i.e., electric current. The magnetic field causes the magnetic force associated with magnets.
The theoretical implications of electromagnetism led to the development of special relativity by Albert Einstein in 1905; and from this it was shown that magnetic fields and electric fields are convertible with relative motion as a four vector and this lead to their unification as electromagnetism.
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