Solid Sphere Body [3x3] Inertia tensor component Ixx= is inertia from rotating along x-axis which can be solve by setting sort of cylindrical disks along x-axis, which come out to be Integral of product of radius of cylinder square i.e. {sqrt(y^2+z^2)}^2 & change in mass generally from dm that's proportional to volume density*dVol, thus Ixx = int[(y^2+z^2)*dm].

Ixy=-int(xy*dm) What does this product of inertia, one of non diagonal inertia tensor component represent? thx a bunch

Question

Solid Sphere Body [3x3] Inertia tensor component Ixx= is inertia from rotating along x-axis which can be solve by setting sort of cylindrical disks along x-axis, which come out to be Integral of product of radius of cylinder square i.e. {sqrt(y^2+z^2)}^2 & change in mass generally from dm that's proportional to volume density*dVol, thus Ixx = int[(y^2+z^2)*dm].
 
Ixy=-int(xy*dm)  What does this product of inertia, one of non diagonal inertia tensor component represent?  thx a bunch