💡 Li-Fi: Internet Through Light mini project-video Surfing the Web at the Speed of Light The Big Idea What if your room lamp could beam the internet straight into your laptop? That’s Li-Fi (Light Fidelity) —a futuristic technology that uses light waves instead of radio waves (like Wi-Fi) to transmit data. How It Works 🔬 The Light Source An LED bulb flickers on and off at incredible speeds (millions of times per second). The flicker is far too fast for the human eye to notice. Encoding the Data Internet data (1s and 0s) is “written” into this flickering light. Think of it like Morse code, but at light-speed. Receiving the Signal A photodiode (light sensor) on your device picks up the flickers. The sensor decodes them back into digital data. What You Get Super-fast speeds (up to 100 times faster than Wi-Fi in labs). No radio interference, making it useful in hospitals, airplanes, or undersea. Why It’s Special 🌍 Works whe...
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