Heat diffusion

Heat diffusion is the process by which heat energy spreads from an area of higher temperature to an area of lower temperature, similar to how a drop of dye disperses in water. When something is hot, its particles vibrate more rapidly; these vibrations transfer to neighboring particles, gradually spreading the heat throughout the object. This process continues until temperature differences even out, reaching thermal equilibrium. Essentially, heat diffusion is nature’s way of balancing temperature differences over time, via the random motion of particles, ensuring that hot areas cool down and cold areas warm up gradually.