@discover.3.0: Why Propellers Spin Water (Explained) #shorts Ever wondered why the water behind a massive ship looks like a giant underwater tornado? It’s not just for show! Ship propellers are designed as "screws." Instead of just pushing water back, they rotate to create a pressure difference, carving a spiral path called a Helical Flow. This conversion of rotational energy into forward thrust is what moves thousands of tons across the ocean! Watch to see how the "Pitch" of the blade creates this satisfying spiral effect. #engineering #physics #ships #ocean

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Thursday 29 January 2026 21:25:20 GMT