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On my to-do list Sam Lacey 00:17, 18 May 2007 (UTC)

Finished up the mathematical proof that the neutral axis lies on the centroid of a symmetric beam. The proof is enough to increase the class to a "start" class and boost its importance to medium.-- Markozeta ( talk) 17:58, 20 June 2008 (UTC) reply

In sheet metal the neutral axis is defined as the axis that doesn't exhibit a change in length upon bending. As the definition is currently written, this is excluded, so can it be redefined in such a way that this is included? Wizard191 ( talk) 19:17, 16 February 2009 (UTC) reply