Pulley

The video tutorial introduces pulleys as simple machines used for lifting and moving loads. It explains the mechanics of pulleys, comparing them to a see-saw, and describes their three main functions: raising, lowering, and moving objects. The tutorial also highlights various applications of pulleys, such as in theater curtains, window blinds, oil derricks, and exercise machines. It concludes with a reflective question about the capabilities of pulleys beyond lifting and lowering.

What new insight or understanding did you gain from this video?