SCIENCE IN INFINITY WAY on Instagram: "🔑 How a Key Works Inside a Lock — Precision Engineering at a Tiny Scale ⚙️🔬 A key doesn’t “force” a lock open — it aligns it perfectly. Inside most locks are spring-loaded pins of different lengths. When no key is inside, these pins block the lock from turning. 🔹 Pin alignment: Each cut on the key lifts pins to an exact height 🔹 Shear line: When all pins line up, the lock cylinder can rotate 🔹 Mechanical precision: Even a tiny mismatch keeps the lock c

“Engineering Precision: Thread Plug Gauge in Action”❌✅