" The fermions can be arranged in three generations, the first one consisting of the electron, the up and down quarks, and the electron neutrino. All ordinary matter is made from first generation particles; the higher generation particles decay quickly into the first generation ones and can only be generated for a short time in high-energy experiments . The reason for arranging them in generations is that the four fermions in each generation behave almost exactly like their counterparts in the other generations; the only difference is in their masses. For example, the electron and the muon both have half-integer spin and unit electric charge, but the muon is about 200 times more massive. The electron and the electron-neutrino, and their counterparts in the other generations, are called "leptons", "weakly interacting particles". Unlike the quarks, they do not possess a quality called "color", and their interactions are only weak and electromagnetic, and fall off with distance. On the other hand, the strong or "color" force between quarks gets stronger with distance, so that quarks are always found in colorless combinations called hadrons, a phenomenon known as quark confinement. Walthers Model Trains These are either fermionic baryons composed of three quarks (the proton and neutron being the most familiar example) or bosonic mesons composed of a quark-antiquark pair (such as pions). The mass of such aggregates exceeds that of the components due to their binding energy. "

". ] and you look at those examples to see whether they follow the Propaganda Model. " (Understanding Power, 18f; emphasis in the original) And so the book studies the examples regarded as paradigmatic examples of the independence of the press, such as the Vietnam war, Watergate, and the Iran-Contra Affair, and argues that these examples actually confirm the model. They also looked at what they perceived as naturally-occurring "historical control groups" where two events, similar in their relevant properties but differing in the expected media attitude towards them, are contrasted using objective measures such as coverage of key events (measured in column inches) or editorials favoring a particular issue (measured in number). Finally, the authors examine what points of view they believe are expressed in the media. In one case, the authors examined over fifty of Stephen Kinzer's articles about Nicaragua in the New York Times. They criticize Kinzer for failing to quote a single person in Nicaragua who is pro-Sandinista and contrast this with polls that Chomsky and Herman cite as reporting a 9% support for all the opposition parties taken together. Lima Model Trains Based on this example and select others, the authors conclude that such a persistent bias can only be explained by a model like the one they advocate. Applications Since the publication of Manufacturing Consent, both Herman and Chomsky have adopted the theory and have given it a prominent role in their writings, lectures, and theoretical frameworks. "