https://en.wikipedia.org/wiki/Ammonia

...let me see...ammonia and fridges....see previous post and then a hop skip and a jump to the effelsberg radio telescope...go figure:

"Radio observations of NH₃ from the Effelsberg 100-m Radio Telescope reveal that the ammonia line is separated into two components – a background ridge and an unresolved core."

https://en.wikipedia.org/wiki/Effelsberg_100-m_Radio_Telescope

with a sidelong glance, at the history of it all...beginning with 'alchemy', dazzlenation:

 

https://en.wikipedia.org/wiki/Forming_gas

https://en.wikipedia.org/wiki/Endothermic_gas#/media/File:Endothermic_Gas_Generator_Diagram.jpeg

along with a diagram that appears to resonate with that 'governmental transmission'...the one that you had picked up, earlier - BI...go figure: