I hope the reader is familiar with the main features of the Planck law (???), including its general shape (Figure \PageIndex2), with the low-frequency asymptote \(u(\omega ) \propto \omega^...I hope the reader is familiar with the main features of the Planck law (???), including its general shape (Figure \PageIndex2), with the low-frequency asymptote u(ω)∝ω2 (due to its historic significance bearing the special name of the Rayleigh-Jeans law), the exponential drop at high frequencies (the Wien law), and the resulting maximum of the function u(ω), reached at the frequency ωmax with