Lunatheum on Instagram: "Propellers are rotating mechanical devices designed to generate thrust by pushing air or water backward. They work on basic physics principles such as Newton’s third law and Bernoulli’s principle. As a propeller spins, its angled blades create a pressure difference between the front and back surfaces. This pressure difference accelerates fluid backward, producing forward motion. Propellers are widely used in airplanes, helicopters, ships, submarines, and even drones. The

@future.explanation on Instagram: "The largest ship propellers ever built are engineering systems measured in meters and tons, not centimeters. Modern naval propellers can exceed 9 meters in diameter and weigh over 130 tons, converting engine power into thrust with extreme efficiency. Designs vary from single-piece fixed propellers to 360° azimuth thrusters, optimized for cargo transport, passenger comfort, offshore precision, or military power projection. Why it matters: These propellers are cr