The Proximity Fuse That Eliminated 700 Germans In ONE Artillery Barrage Discover how the proximity fuse became one of the most remarkable scientific breakthroughs of World War Two ⚙️💥🌍. Developed in deep secrecy, this tiny device changed how artillery and naval weapons worked by allowing shells to detonate at the exact moment they neared a target. What once relied on precise timing or direct impact was transformed by a miniature radio system that could sense distance in midair. Explore how thi