The "UNITS" part is wonderful. I had no idea slugs even existed.

    You want to measure how much air mass is in a given volume? That’s gonna be slugs/ft3.

    A nautical mile is ~6,076 feet or exactly 1,852 meters (???).

That is actually defined by distances on Earth (which is of course an approximation, but still ...). So, 1 nautical mile equals to one minute in the 90 degrees hemisphere arc. It's approximately 10k km from equator to the pole, so 10,000km/90/60 equals 1.852km.

> Note that Fortran supports arrays with an arbitrary starting index, in this case -2. So this table supports indices in the range [-2, 9].

That is such a useful feature! Surprised I haven’t seen that more often. So much fiddly code exists that’s just fixing offsets to conform to 0 (or 1 for Lua) -based indexing!