🌊 Undersea Internet Cables The Secret Wires That Connect the World Beneath the Waves, the World Talks 🌍 When you send a message, stream a movie, or join a video call, your data doesn’t fly through satellites — it mostly travels through the ocean . Thousands of kilometers of fiber-optic cables , as thin as a garden hose, stretch across the seabed — linking continents, carrying 99% of global internet traffic. It’s the real backbone of the internet — silent, invisible, and deep under the waves. How It Works ⚙️ Each undersea cable contains bundles of glass fibers that transmit data as pulses of light . Inside each strand, lasers turn your emails, videos, and web pages into flashes of light — billions of times per second. These light pulses bounce within the glass core, guided by total internal reflection, traveling thousands of kilometers almost at the speed of light. At landing stations on shore, the light is converted back into electrical signals — ready for y...