Northwestern Engineers Unveil ‘Phantom Twist’: The Stealth Drone That Hides in Motion Blur
By spinning 25 times per second, this experimental UAV exploits the limits of human vision to virtually disappear in flight. By Raja Ali SEO Expert | Published: July 28, 2026 Traditional stealth aircraft rely on expensive radar-absorbent coatings, high-tech light-bending metamaterials, or complex optical camouflage. However, roboticists at Northwestern University in Illinois have achieved low visibility using a far simpler visual trick: persistent motion blur . Dubbed the Phantom Twist , the prototype drone rotates around its central axis at a staggering 25 revolutions per second (1,500 RPM). That speed outpaces the human eye's ability to process sharp spatial detail , transforming the aircraft into a faint, semi-transparent smudge that effortlessly blends into the sky or landscape behind it. "Most efforts to hide drones focus on making them look like their surroundings," explained Michael Rubenstein , associate professor of computer science and mechanical engineering...
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