Polarization
Scientific Concept
Mark Green: Palin Is Nixon, Minus The Smarts...Communist Containment" Then in his years in the wilderness from '63-'68 and as president in '69-'73, Nixon stuck closely to the "postitive polarization" strategy honed by young speechwriter Pat Buchanan. He again and again slyly salted the... In this article: Sarah Palin, Richard Nixon, Adlai Stevenson, Polarization, Ivy League, Nixonland, Richard Perlstein, and EPA |
-
washingtonpost.com | 3 days ago
World Digest: At least 21 killed in separate attacks in Afghanistan
...criticized the Canadian-drafted resolution, saying that assembly decisions of this kind have "created an atmosphere of confrontation and polarization." The nonbinding resolution was approved 74 to 48, with 59 abstentions. The committee...
In this article: U.N., United States, Mohamed ElBaradei, Afghanistan, Hamid Karzai, Iran, Unicef, International Atomic Energy Agency, Tehran, and Abdul Rasul Sayyaf
-
U.N. committee slams Iran for post-election crackdown
...sharply criticized the Canadian-drafted resolution, saying that assembly decisions of this kind have "created an atmosphere of confrontation and polarization." The 192-nation assembly's Third Committee, which focuses on human rights,...
In this article: Iran, United Nations, Baha'i International Community, Tehran, Mahmoud Ahmadinejad, and Fascism
-
TIME | 3 days ago
Polarized News? The Media's Moderate Bias
(See pictures of NBC's Tom Brokaw.) All of which underlines the obvious: the news audience, if not news itself, is getting more polarized. But categories like Pew's "liberal," "conservative" and "neither" imply that our society is as...
In this article: Barack Obama, Global warming, White House, New York City, Glenn Beck, Polarized, Populism, Progressivism, Republicanism, and Conservatism
-
CNN | 5 days ago
Americans paying attention to health care debate?
...meanwhile, could be just as tense. "The rhetoric will undoubtedly be extremely harsh, as it was in the House. The level of party polarization will be almost the same as that in the House," Lee says. That polarization in Congress is...
In this article: E mail, U.S., Sausage, and University of Maryland
-
washingtonpost.com | November 10, 2009
Polarizing around Fort Hood
Can we please avoid a horribly polarizing and ultimately harmful debate over whether Maj. Nidal Malik Hasan's interpretation of his Muslim faith played a role in motivating his alleged act of mass murder? We need to be able to keep two...
In this article: Fort Hood, John T. Noonan, and Polarizing
-
Forbes.com News | October 28, 2009
Polarization Hurts Reform Efforts
...the entrenched nature of current partisan divisions is plain. The U.S. is in the midst of a historically high, but not unique, period of party polarization--which has consequences for the law-making process. High levels of party...
In this article: Barack Obama, U.S., Recession, and House of Representatives
Trends
Loading...
More on Polarization
Description from Wikipedia:
Polarization (also polarisation) is a property of waves that describes the orientation of their oscillations. This article primarily covers the polarization of electromagnetic waves such as light, although other types of wave also exhibit polarization. By convention, the polarization of light is described by specifying the direction of the wave's electric field. When light travels in free space, in most cases it propagates as a transverse wave—the polarization is perpendicular to the wave's direction of travel. In this case, the electric field may be oriented in a single direction (linear polarization), or it may rotate as the wave travels (circular or elliptical polarization). In the latter cases, the oscillations can rotate rightward or leftward in the direction of travel, and which of those two rotations is present in a wave is called the wave's chirality. In general the polarization of an EM field is a complex issue. For instance in a waveguide such as an optical fiber, or for radially polarized beams in free space, the description of the wave's polarization is more complicated, as the fields can have longitudinal as well as transverse components.
For longitudinal waves such as sound waves in fluids, the direction of oscillation is by definition along the direction of travel, so there is no polarization. In a solid medium, however, sound waves can be transverse. In this case, the polarization is associated with the direction of the shear stress in the plane perpendicular to the propagation direction. This is important in seismology.
Polarization is significant in areas of science and technology dealing with wave propagation, such as optics, seismology, and telecommunications. The polarization of light can be measured with a polarimeter.
Explore everything named Polarization...
