RSI Oversold Explained | Why RSI Below 30 Doesn’t Always Mean Buy | RSI Trading Mistakes | Samco

Evolving invention of Fiber Optics 🧵 The invention of fiber optics is one of the most powerful stories in human innovation, tracing how we learned to control and transmit light itself. It began in the 1840s, when Daniel Colladon and John Tyndall demonstrated that light could bend inside a stream of water through total internal reflection — the same principle that powers fiber optics today. In the 1930s, Dr. Heinrich Lamm used tiny glass bundles to transmit images, paving the way for optical ima

How to Test Your Internet Speed (And What It Means to You)

How to Properly TEST & IMPROVE Your Wi-Fi

How To Test Internet Speed