As far as I understood, we define two quantities:
Inertia Tensor - a $3\times3$ matrix, which describes the object "mass" of rotation in relation to a certain point, helping us calculating rotations around any axis in 3D-space.
Moment of Inertia - a scalar which describes the object "mass" of rotation in relation to a certain axis.
And my question is:
- Is my understanding correct?
- How can we reach the Moment of Inertia of some arbitrary axis, while being given the Inertia Tensor?
