Technology Explained ⚙️ on Instagram: "Follow @explaining.tech to learn everything about technology one post at a time 🧠⚙️. Up close, a CD isn’t just shiny plastic — it’s a spiral of billions of microscopic bumps and flat areas, known as pits and lands. A laser reads those patterns, converting light reflections into the digital 1s and 0s that form music, movies, or data. It’s wild how something that looks so simple carries so much invisible precision. #explainingtech #howthingswork #tech