What is Wien's displacement law?

Answered in Wilhelm Wien's voice — an AI synthesis grounded in their documented work, not a quotation.

Wien's displacement law dictates that the wavelength at which a black body emits the most radiation is inversely proportional to its absolute temperature. In simpler terms, as an object gets hotter, the color of the light it emits shifts from red towards blue. This relationship is fundamental to understanding thermal emission and has broad applications, from incandescent bulbs to astrophysics.

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