I read recently that the hydrogen atom can exist in two states. One state is when the proton spin and the electron spin are the same. The lower energy state is when the electron spin opposes the proton spin. When the electron spin is flipped, the hydrogen atom generates a photon in what I believe is the 20meter band. Don't know what percentage of hydrogen exists in the more energetic state as opposed to the ground state but it may be worth additional research to find out.
Sparks
Do you have any info/links on this Flipping and releasing a Photon?
The shockwave which the pistol shrimp does causes a "photon release" resulting in a Sonoluminescent event.
https://www.youtube.com/watch?v=eKPrGxB1Kzc (https://www.youtube.com/watch?v=eKPrGxB1Kzc)
more info would be wonderful since there is an open source project which
could benefit from this information.
thx
Chet
The photon generation appears to be linked to the transition of the electron within the orbital. I need to correct the photon frequency. It is in the microwave bands at 21 centimeters not meters. The photon yield per electron/atom is very minimal but if the energy needed to force the transition is less than the yield ....? This light scource is transparent to our atmosphere and astronomers use dish antennaes to look at the cosmos in this band.
It appears that the probablilty of an electron transition is largely effected by atomic collisions (heat). The nice thing about the hydrogen hyperfine transition is the predictability of the photon wavelength. This effect could serve as a heat to electrical conversion by aiming a radio microscope at some warm water. ;)