NEIADan's wife here. Studies (Nature, IBM) have found that Wikipedia's error rate is comparable to Encyclopedia Britannica. Neither is perfect, and there are probably very few sources that are error free. Although anyone can contribute to Wikipedia, errors are often quickly corrected by other contributers. I work in a library, and know that the acceptance of online sources like Wikipedia has been slow to happen by people who ARE trained to search for and verify information, but Wikipedia is now commonly used as a resource by many. If you do not want to rely on Wikipedia to report on its own reliability, it's easy enough to Google the studies.
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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