Tech solutions on Instagram: "Walter Lewin demonstrates the concept of thermal expansion by clearly showing how materials change their dimensions when temperature varies, turning an abstract idea into a vivid physical reality. Through simple yet powerful experiments, he heats and cools solid objects to reveal how atoms vibrate more vigorously as temperature rises, causing the material to expand, and contract again as it cools. His engaging explanation and hands-on approach make it easy to unders

Know in Minutes on Instagram: "Thermal imaging technology is usually used for detecting heat, identifying leaks, or supporting military and industrial operations. But what happens when a thermal camera is brought to a live concert? This viral video shows a stunning and unusual perspective of a singer performing on stage, captured entirely through a thermal lens. The camera reveals real-time body temperature changes, lighting effects, and heat patterns that are invisible to the naked eye. Viewers