✨ Wonder

Why do evenings get dark so fast right now?

Nothing has happened to the sun. But the year is a hill: flat at the top in June, steepest right now. In late June the day shrank by about one minute every twenty-four hours. Now it shrinks by about five.

We are in the steepest part of the hill June: ~1 min/day now: ~5 min/day
The lamp we have to switch on
The dark coming back
The year’s daylight curve — the hill we slide down
~1 min
shorter day each night in late June
~5 min
shorter day each night now, in southern Norway
23 Sept
roughly when the hill is at its very steepest