However, attempting to reconcile electromagnetic theory with two observations, the photoelectric effect, and the nonexistence of the ultraviolet catastrophe, proved troublesome.
12.
Together with the ultraviolet catastrophe likewise predicted by equipartition these disagreements set physicists on the path to quantum mechanics and quantum field theory.
13.
The term " ultraviolet catastrophe " was first used in 1911 by Paul Ehrenfest, but the concept originated with the 1900 derivation of the Rayleigh Jeans law.
14.
After a bit more reading, I'm still not able to express why classical stat mech had an ultraviolet catastrophe but the h * nu hypothesis solved things.
15.
"' 1900 "': Max Planck resolves the ultraviolet catastrophe by suggesting that black body radiation consists of discrete packets, or quanta, of energy.
16.
While Planck had solved the ultraviolet catastrophe by using atoms and a quantized electromagnetic field, most contemporary physicists agreed that Planck's " light quanta " represented only flaws in his model.
17.
This inconsistency between observations and the predictions of classical physics is commonly known as the ultraviolet catastrophe, and its resolution was a foundational aspect of the development of quantum mechanics in the early 20th century.
18.
Various problems occur if classical mechanics is used to describe quantum systems, such as the ultraviolet catastrophe in black body radiation, the Gibbs paradox, and the lack of a zero point for entropy.
19.
The Planck law does not suffer from an ultraviolet catastrophe, and agrees well with the experimental data, but its full significance ( which ultimately led to quantum theory ) was only appreciated several years later.
20.
They exist in theories and are a sign that there's something wrong with the theory ( for example, the ultraviolet catastrophe is a singularity in classical physics which was solved by quantum mechanics ).
