19. Systems Theory Collect Information Weigh risks Make decision Mac hine Person Environment Interaction Task to be performed
This is also true with hand tools. In the pictures above you will see two types of scissors. The first pair is a typical pair of manual scissors that rely on people to open and close them. These are still used throughout the poultry industry. The pair on the right is a pair of pneumatic powered scissors. This pair uses air power to close and open the blades of the scissors. With a tool like this one the force is lower and consistent no matter how difficult the part is to cut. Discussion Questions What kind of tools or equipment do you use everyday that makes your life easier? What about equipment or tools at work?