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object's moment of inertia, which I understand to be a scalar quantity that

describes that objects tendency to resist rotation about a fixed axis either

about, or some distance from its center of mass.

I was recently reading about how an object's moment of inertia can also be described as a

*tensor*quantity when the axis of rotation is not fixed, but arbitrary.

I have not had much experience with tensors, the extent of my knowledge is mostly conceptual at this point, so I will not be able to decipher the math, however, I was hoping somebody could give me a more conceptual description of what this means, specifically rotation about an arbitrary axis, I'm have a hard time wrapping my head around that. Anybody have an example?

Cheers