Include daylight data with precipitation

[xmacex]

The idea is to provide sunrise 🌅 and sunset 🌆 times, and some function between them... Just a sinusoidal global function with an approximate horizon (move along z axis, lower during winter) and inclination (squish in z, more during winter)? Maybe get data from something like this, or maybe a model for the Sun-Earth interactions as two-body system, with Copenhagen on top of one? Celestial mechanics are well known since... a long time ago.

Some symbol renaming will be wise to do.

• Ptolemy
• Copernicus
• Galilei
• Kepler
• Newton
• Einstein
• Durham Peters, John. 2015. The Marvelous Clouds: Toward a Philosophy of Elemental Media, ch 5

[xmacex]

Notes from today's meeting, let's go data use the length-of-day data from the day we center on, e.g. when a presentation was given.