Well, the crappy quantum mechanics has a major failure (or maybe, a major coverup).

It is said that when an electron in an atom gain discrete energy, temporarily jumps to a higher orbit.

When decays to the initial orbit, emit a PHOTON.

Nobody on Earth knows the time this transition takes: it goes from 1 femtosecond (10^-15 sec) to about a million wavelength.

The problem is: not knowing it makes impossible to explain how at least ONE wavelength is emited on the decay to lower energy state.

It poses a problem that can be traced back to Planck original equation: How to explain wavelengths of 1000 nanometers or greater coming out of the black box experiment, when it is heated?

To be continued.