Even a small amount of stress can have a large effect. Driving in a massive traffic jam may cause you to act differently, perhaps becoming hostile to other drivers, or even bringing on a headache. Speaking to a large group of people may cause a person to repeatedly say, “uhhh,” while his or her palms sweat profusely. It’s safe to say that we often act differently under stress. Similarly, components in a fluid power system running at full power in a dirty factory may behave in ways quite different from ones sitting on a simple test bench....
More