Image Credit

Description:

Strain is defined as the change in length of a material divided by the original length of the material. Under tension, the material may show an incremental increase in length. Under compression, the material may show an incremental decrease in length. Illustration of incremental length changes in response to tensile and compressive stresses, and a weightlifter straining to lift the back end of an automobile.

Source:

BBC

License:

Copyrighted

Source URL:

http://www.bbc.co.uk/northernireland/yourplaceandmine/antrim/glenarm_giants.shtml