@explaining._science on Instagram: "A shockwave is a powerful, fast-moving disturbance that travels through a medium (air, water, or even solid materials) when something moves faster than the speed at which sound normally travels in that medium. Here’s the key idea: Normally, sound waves spread out smoothly in all directions. But if an object (like a jet, explosion, or even a bullet) moves faster than sound, the pressure waves “stack up” and combine into a single, very sharp and intense wavefron

Ai Youth Stack on Instagram: "China is already deploying AI-powered river cleaning robots to fight pollution. These autonomous vessels patrol rivers without human control. They use GPS, sensors, and AI vision systems to detect floating trash, optimize cleaning routes, and separate waste from harmless debris. Machine learning also helps monitor water quality by analyzing pH, oxygen demand, and turbidity in real time. Once full, the robot automatically returns to shore, empties the waste, and head