Hi, my first post. Forgive my niaivity. And please correct any mistakes I make. I am just an interested novice. My question relates to the ultraviolet catastrophe. I believe the Rayliegh-Jeans Eq implied that the energy intensity of black body radiation (at specific temperatures) diverges to infinity as the wavelength shortens. This was shown experimentally to not be the case by Planck et al. However what I would like to be able to understand is how and why that inspired Planck to suggest that energy is emitted in quanta. I hope I asked the question correctly.