Girithar Ram Ravindran on Instagram: "Did you know your light bulb can transmit internet? Just like Wi-Fi uses radio waves, Li-Fi uses light to send data by changing a bulb’s intensity at high speed. It’s faster, more secure, and can even work in airplanes — but light can’t pass through walls. Watch till the end. Follow the page for more short tech videos. #LiFi #LiFiTechnology #TechFacts #FutureTechnology #WirelessInternet #InternetTechnology #NextGenTech #Innovation #ScienceAndTechnology #Tech