Linked from
The 17 pages that link to Ultraviolet catastrophe, each with the reason it gives.
Planck constantRelated: The failure of classical physics prompted Planck’s quantized energy model.
Planck's lawRelated: Planck's law resolved this failure of classical predictions.
Rayleigh–Jeans lawBroader topic: This divergence is the law’s defining failure at short wavelengths.
Classical physicsRelated: It exemplifies a specific breakdown that prompted quantum theory.
Planck postulateCompared with: The postulate avoids this failure of classical equipartition.