Note:  Do not rely on this information. It is very old.

Radiusof Gyration

Radius of Gyration of a body with respect to an axis is the distance from the axis at which the whole mass of the body should be placed in order that its moment of inertia about that axis should remain the same.

“The LORD your God is in your midst, a mighty one who will save; he will rejoice over you with gladness; he will quiet you by his love; he will exult over you with loud singing.”
Zephaniah 3:17