Euler's Theorems | Cycle, Path & Sum of Degrees

Sigma Bruce on Instagram: "In Liuyang, Hunan Province, China set a new Guinness World Record by launching nearly 16,000 synchronized drones into the night sky. Each drone operated under an Al-driven swarm control system, using real-time positioning and millisecond-level coordination across thousands of units. They formed towering 3D shapes, trees, flowers, waves, all choreographed to a pre-programmed sequence. Behind the spectacle: electric quadcopters with LED payloads, precision GPS/RTK system