Fourier's Law

Fourier's law states that the rate of heat transfer through a material is directly proportional to the temperature difference across that material and inversely proportional to its thickness. In simpler terms, if one side of an object is hot and the other side is cold, heat will flow from the hot side to the cold side. The greater the temperature difference, the faster the heat transfer will occur. This principle helps us understand how heat moves in various contexts, such as in cooking, building insulation, and even in the Earth's geology.