Are there analogous concepts to the principal axis in other areas of physics?

Determine principal axes of each frame determined by diagonalization of the inertial matrix from the coordinates of the specified atoms. A principal axis of rotation (or principal direction) is an eigenvector of the mass moment of inertia tensor (introduced in the previous section) defined ... Asteroid (5247) Krylov is spinning in a short axis mode characterized by rotation and precession periods of 368.7 and 67.27 h, respectively. To create a datum axis along a principal axis: From the main menu bar, select Tools Datum. The Create Datum dialog box appears. large values on this axis), whereas the second principal axis reflected pH and phosphate concentrations (sites with high pH and high PO4 concentrations had ... Click the Inertia / G tab to display the principal axes about which inertia is calculated. The A1, A2 and A3 axes correspond to the principal axes represented ... Lecture Summary. Conventions for Axes. The axis of the highest order rotation is known as the principal axis. By convention ... Principal axis theorem ... In geometry and linear algebra, a principal axis is a certain line in a Euclidean space associated with a ellipsoid or hyperboloid, ... In the principal axis factoring method, we make an initial estimate of the common variance in which the communalities are less than 1. This initial estimate ... The principal axes of inertia of a rigid body are a set of axes passing through the object's center of mass and relate to the object's mass distribution such ...