@cyberstack.io on Instagram: "Follow @cyberstack.io for daily tech knowledge, engineering secrets, and future innovation 💪🔥 Ever noticed your Wi-Fi signal suddenly drops when you step into the bathroom? 😮‍💨 That’s not bad internet — that’s science in action. Wi-Fi signals are radio waves, and materials like concrete walls, metal pipes, mirrors, and even water absorb or block these signals. Bathrooms often have tiles, plumbing, and moisture — creating what engineers call signal interference z