generally speaking the shenanigans possible at wikipedia occur over social issues or people, the hard sciences are generally reliable. If you have any doubt you can veiw a comparative history of an article. The ability for someone to make corrections, additions, or a
new article is the great strength of any wiki, but verifying information is
easy when you have a lexicon of specific search queries. There are also generally external links, cross references with wiki articles and a self supporting network of logic between related articles (at least in the sciences
)
IMO traditional "reference" materials are an endangered species, consider
Quote:
Wikipedia - Wikipedia, the free encyclopedia
As of November 2007, Wikipedia had approximately 9.1 million articles in 253 languages, comprising a combined total of over 1.41 billion words for all Wikipedias. The English Wikipedia edition passed the 2,000,000 article mark on September 9, 2007, and as of December 17 it had over 2,131,000 articles consisting of over 927,000,000 words.[1] Wikipedia's articles have been written collaboratively by volunteers around the world and the vast majority of them can be edited by anyone with access to the Internet. Having steadily risen in popularity since its inception,[3] it currently ranks among the top ten most-visited websites worldwide.[7]
Critics have questioned Wikipedia's reliability and accuracy, citing its open nature.[8] The criticism is centered on its susceptibility to vandalism, such as the insertion of profanities or random letters into articles, and the addition of false or unverified information;[9] uneven quality, systemic bias and inconsistencies;[10] and for favoring consensus over credentials in its editorial process.[11] Scholarly work suggests that vandalism is generally short-lived.[12][13]
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anything on the web needs verification, and the application of
critical thinking
but odds are the thermodynamics section of wikpedia is "safe"
as far as the PSI ratings that wasnt from wikipedia, I grabbed it off a state reg (Penn?) its also lower in some countries. Pressure is just one variable, ambient temperature would be another.
Acetylene generators are also slightly different from Acetylene storage as its an ongoing chemical reaction of calcium carbide and H2O
whereas storage employs its being dissolved into acetone isolating it from O2 forestalling decomposition, the acetone in turn is within a matrix of porous material which limits the free volume of the tank controlling and cooling any thermal decomposition
http://www.depweb.state.pa.us/deepmi...yacetylene.ppt Quote:
explosive range is 3.0 to 93%
needs only 10% oxygen to ignite
it is an unstable gas, will violently decompose when in a pure state above 15 psi
Auto-ignition temperature is 763-825 F, this means acetylene reaches 30 psi in a free state. it can explode by itself without a spark or flame being present
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