Hydrostatic System Explained: MIT Slide 10

[ehrenfest]

Homework Statement

Can someone explain to me what a hydrostatic system is? I cannot find a good definition. I saw the term at http://ocw.mit.edu/NR/rdonlyres/Physics/8-044Spring-2004/61D97187-F3E1-45AC-B549-EC16979B6FE8/0/lec11.pdf on slide 10. Actually please look at the slide and explain it in that context if you do not mind.

Homework Equations

The Attempt at a Solution

 

[ehrenfest]

anyone?

 

[Mapes]

On that slide the term is being used to describe a system where the applied stresses in all three directions are identical and equal to the pressure.