This video is an introduction to stress and strain, which are fundamental concepts that are used to describe how an object ...

In scoliosis, the spine has a sideways curve ... strain on the back. Stress can cause tension in the upper back and shoulders. Yoga or stretching exercises can help ease tight muscles.

The top diagram shows a tensile stress-strain curve for a 6,6 Nylon. It should be noted that the strain at fracture is very large (300%) compared to that for metals. The lower diagram shows the ...