💾 Archived View for jb55.com › ward.bay.wiki.org › good-morning captured on 2021-12-05 at 23:47:19. Gemini links have been rewritten to link to archived content
⬅️ Previous capture (2021-12-04)
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I woke up at 4:50 this morning with light in the window and birds singing. I'm thinking, June 22 is special, the longest day of the year? Don't want to miss that.
<div style=" padding: 12px; background:#eee; width:96%; align=centered;"> <img style=" display:block; margin:auto; width:100%;" src="http://c2.com/wiki/GoodMorning/IMG_1117.JPG"> <p class=caption> First light from my street looking north. enlarge </p> </div>
How much morning had I already missed? I checked my daylight sensor which saw first light at 4:50 also. page
<div style=" padding: 12px; background:#eee; width:96%; align=centered;"> <img style=" display:block; margin:auto; width:100%;" src="http://c2.com/wiki/GoodMorning/Screen%20Shot%202016-06-22%20at%205.04.01%20AM.png"> <p class=caption> Daylight sensor samples every five minutes. enlarge </p> </div>
I had processed and plotted this data stream in the spring when we most often notice the days getting longer. Here we can compare recent summer days. page
<div style=" padding: 12px; background:#eee; width:96%; align=centered;"> <img style=" display:block; margin:auto; width:100%;" src="http://c2.com/wiki/GoodMorning/Screen%20Shot%202016-06-22%20at%205.11.06%20AM.png"> <p class=caption> Measured interval between dawn and dusk. enlarge </p> </div>
Trigonometry tells us that change reaches zero on the longest day. Yes, today could be it. I also notice that summer days aren't as long this year. What's with that? Must be my backyard tree cove filling in more of the sky.
See Measured Daylight Hours
