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The following is a list of second moments of area of some shapes. The second moment of area, also known as area moment of inertia, is a geometrical property of an area which reflects how its points are distributed with respect to an arbitrary axis. The unit of dimension of the second moment of area is length to fourth power, L 4, and should not ...
The second moment of area for the entire shape is the sum of the second moment of areas of all of its parts about a common axis. This can include shapes that are "missing" (i.e. holes, hollow shapes, etc.), in which case the second moment of area of the "missing" areas are subtracted, rather than added.
Language links are at the top of the page across from the title.
The second polar moment of area, also known (incorrectly, colloquially) as "polar moment of inertia" or even "moment of inertia", is a quantity used to describe resistance to torsional deformation (), in objects (or segments of an object) with an invariant cross-section and no significant warping or out-of-plane deformation. [1]
This list should be renamed to 2nd moments of area to avoid confusion with mass moments of inertia. — Preceding unsigned comment added by 137.222.212.111 (talk • contribs) 19:56, 28 April 2010. While there are problems with some of the shape displays, this page is important for people (such as myself) studying angular mechanics.
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A second moment of silence was held at 9:03 a.m. to mark when hijacked Flight 175 struck the South Tower. Another moment of silence followed at 9:37 a.m., marking when hijacked Flight 77 struck ...
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