Physics Uncovered on Instagram: "When temperatures drop, atoms slow down — and that slowdown makes materials contract. This process is called thermal contraction, the opposite of thermal expansion. ❄️➡️📏 You can actually see it around you: power lines tighten in winter, and roads can crack when the ground gets cold and contracts. It’s a subtle but powerful reminder that even solid objects are in constant motion — just slower than you think. ⚙️ #science #physics #explore #reels #learnsomethingne