Have you ever seen someone flick a tablecloth out from under plates that stay in place? The plates stay in place because of a concept called inertia. A ...

A weight is hung from a frame by a piece of thread. An aluminum rod is attached to the bottom of the weight by a second piece of string. The aluminum rod is pulled down. If the rod is pulled down ...

The response of a component to these torsional loads depends upon a material property called the shear modulus, and the geometry of the component through its geometric moment of inertia. In these ...