Now that we've briefly gone over the history of the Earth, it's time to look at some different geologic structures that span all those eons. This will require gaining an understanding of rock deformation. We need to discuss the terms...

This video explains the concepts of shear stress and torsion. It describes how internal stresses develop in a beam to resist external forces and how shear stress is defined as force per unit area when the force is acting parallel to the...

The video is a lesson on the relationship between stress and strain and how it is represented graphically in a stress-strain diagram. The video explains the definitions of stress and strain and how they relate to internal and external...