:User:Gryfin is ignoring the constant refinements made to the definitions of the SI units. In 1983, the definition of a meter was changed to "The distance traveled by light in vacuum in 1/299792458 second". Given that the experiments were conducted in SI units and Energy is measured in Joules, the proportionality constant determined by those measurements works out to be the speed of light (in SI units) squared. This has nothing to do with light or relating the speed of light to mass or to the Book of Genesis. Thanks, [[User:Wschact|Wschact]] 08:12, 13 March 2013 (EDT)
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==Lead paragraph==
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A couple of weeks ago, I moved the discussion of the "popular culture" references to E=mc<sup>2</sup> to a separate section at the bottom of the article, away from the lead section. On March 11 it was reverted. [[Conservapedia:Writing a Good Article]] advises, "The intro paragraph is meant to be a short paragraph which introduces the subject to the reader, generally about four to five sentences long." I believe we have a well-written article here except for the lead section. As it stands now, the lead section is not a summary of the rest of the article. It reads as though someone who does not understand the article came in and added a parody of it to the lead section. I will wait a week for a reply and then correct the article to conform to CP's style for writing proper articles. Thanks, [[User:Wschact|Wschact]] 08:12, 13 March 2013 (EDT)