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Golf Ball-Inspired “Smart Skin” Could Revolutionize Drones and Submarines Introduction: Drag Reduction Without Moving Parts Engineers at the University of Michigan have taken a cue from golf balls to create a next-generation propulsion breakthrough for drones and submarines. Their invention—a dimpled, dynamically programmable surface—reduces drag and improves maneuverability without relying on fins, rudders, or rotating components. This bio-inspired advance could transform how we design and operate aerial and aquatic vehicles. Key Features and Technological Innovation: Smart Skin, Smarter Movement • The prototype is a hollow sphere covered in latex, outfitted with programmable dimples that can be turned on or off via a vacuum pump system. • Unlike traditional propulsion systems, this design eliminates the need for external appendages, enabling smoother movement and reduced mechanical complexity. Drag Reduction Inspired by Sports Science • Golf balls travel up to 30% farther than smooth spheres because their dimples reduce pressure drag by disrupting the boundary layer of air. • The same principle applies here: adaptive dimples actively change surface texture, reducing resistance during motion in air or water. Real-Time Testing and Efficiency Gains • In wind tunnel and fluid tank simulations, the dimpled sphere achieved: • 30% drag reduction • Greater range and speed • Enhanced control precision without changing the body’s orientation • The shape and texture can be tailored dynamically in real time, adjusting to changing flow conditions or directional needs. Applications Across Domains • Underwater drones and submarines: Can maneuver stealthily and efficiently without external fins or rudders. • Aerial drones: Improved aerodynamic control without the need for complex propeller or wing systems. • Future vehicles: Could eventually enable shape-shifting structures for spacecraft, surveillance bots, or soft robotics. Why This Matters: Redefining Design Paradigms This innovation could usher in a new class of smooth-bodied, agile vehicles capable of navigating environments with unmatched efficiency. By mimicking nature and sports engineering, the technology removes traditional mechanical limits, leading to: • Lower energy consumption • Reduced maintenance and noise • Greater stealth and versatility Conclusion: The Future of Motion Is in the Skin The University of Michigan’s programmable “smart skin” may mark a paradigm shift in how vehicles move through air and water. Like the golf ball that inspired it, this design promises to go farther, faster, and smarter—without the drag of outdated mechanics. As researchers continue to refine this adaptive technology, the possibilities stretch as far as the eye—and the drone—can see. Keith King https://lnkd.in/gHPvUttw