The conversation between human and AI assistant.
Why are hydraulic systems used in machinery like bulldozers & backhoes, while pneumatic systems are used for things as opening and closing bus doors?
Well, why are hydraulic systems used in heavy machinery like bulldozers and backhoes, while pneumatic systems are used for simpler things like opening and closing bus doors?
That's a great question! Hydraulic systems are commonly used in heavy machinery because they are able to generate much more force than is possible with pneumatic systems, which is necessary for lifting and moving heavy objects. Pneumatic systems, on the other hand, are better suited for tasks that require speed and responsiveness, such as the opening and closing of bus doors.