Equinox
~ew
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> ~bartender? a latte macchiato first, and after sunset a coffee,
black, "as the night is black in Africa!"

~bartender snickers while being busy with the machine. He inquires
about the strange choice.

> Well, today day and night meet half way, don't they?

Yes, well, they do. So the shadow map on good ol' sunclock will
flip to the other side. Which reminds me of Vi, having determined
the day of the solstice using "first principles", i.e. a shadow
casting stick and a ruler.
=>
gemini://vigrey.com/journal/determining-time-from-first-principles-update-1.gmi
=>
https://vigrey.com/journal/determining-time-from-first-principles-update-1.html
And which reminds me of this picture, even though it is a bit
advanced using modern digital photography ...
=> https://apod.nasa.gov/apod/ap220918.html

Enjoy!