Explainer Zone on Instagram: "Deep beneath the Earth, vast and humid caves stretch for miles, some plunging deeper than the tallest skyscrapers. The deepest known cave, Veryovkina Cave in Georgia, reaches 7,257 feet (2,212 meters)—over twice the height of Burj Khalifa. Inside, the air is thick with moisture, temperatures range from 39–50°F (4–10°C), and water drips constantly, forming underground rivers, lakes, and waterfalls. Some caves, like Krubera Cave, even create their own weather systems,

civilext on Instagram: "🚧 How Chinese Workers Drill Tunnels Through Solid Rock! China’s engineers are taking tunnel construction to the next level with the Shui Mo Drill Bit method — a groundbreaking technology designed to slice through solid rock with extreme precision and speed. 🔹 This advanced tunnel boring technique uses a high-pressure rotating Shui Mo (water ink) drill bit, which combines mechanical drilling and hydraulic jet cutting. 🔹 The water jet reduces friction and heat, allowing