Has The similarity amongst diagrams of the expanding universe and of vapour force in mixtures been noted by others? Is this just coincidence? What's the conventionally accepted usage of $N$ and $n$? Will it fluctuate by field? What methods am i able to point to that make clear what Just https://share.evernote.com/note/3862b16f-f83a-cbec-2fb6-07ed32465225