Tag Archives: equinox
This post begins with a bit of what I see as good news. We’re exactly one month away from Winter Solstice — December 21st at 15:03 UTC. That’s 9:03 AM USA Central Time, and I set posts to publish at 9:14 AM, so by the time you read this, it’s just under a month away.
Cue regular Solstice-Equinox reminder that the day-length changes very slowly at the Solstices and very rapidly at the Equinoxes [cue regular link: Solar Derivative].
Until then, here’s another edition of Friday Notes.
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5 Comments | tags: AI, Bentley, eagle, equinox, Python, snow, Solstice, squirrel, weather | posted in Computers, Friday Notes, Math
Once again we pivot into the dark half of the year. Here in the northern hemisphere, anyway. Folks below the equator are enjoying the opposite pivot, the good one into light.

The Autumnal Equinox is my least favorite Solar Occasion (today: 12:44 GMT, 7:44 AM CDT). It means winter is coming. I can deal with the cold, but the short days and long dark nights, that’s tougher.
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3 Comments | tags: autumnal equinox, Bentley, equinox, Jon Stewart, Sun, sunshine, The Daily Show | posted in Life, Politics
It occurred to me that, to some extent, I’d like my most of my blog posts to be like these Friday Notes posts: extemporaneous ramblings and the setting free of any notes recently captured. And some old stories (and maybe a few pictures).
It’s not that I want to stop ‘splaining stuff, my inner teacher is strong. (Is it man-splaining if you’re a teacher?) It’s been one of my things since grade school. Spead knowledge!
But the rambling sure is easy. And fun!
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5 Comments | tags: autumnal equinox, dragons, equinox, lava, wasps | posted in Friday Notes
The older I get the more surprising it is to find myself in whatever MM/YY it happens to be. And a bit more surprised with each one that passes. 09/23. I did not expect to make it this far. Surprise!
Those with a weekly schedule know the rhythm of the days. (Rainy days and Mondays. Hump day. TGIF!) The months have a rhythm, too, and September was always a pivotal beat for me. The Autumnal Equinox — the portal into fall (my favorite season).
This particular September has been interesting enough to distract me from winter’s dark approach and to call for yet another edition of Friday Notes.
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10 Comments | tags: autumnal equinox, Dick Tracy, equinox, science fiction, The Critical Drinker, two slit experiment, YouTube | posted in Friday Notes
If you know me, or if you’ve followed this blog a while, you know I honor Solar holidays more than human ones. The former are directly linked with the seasons, obviously (and who doesn’t love seasons), but to me they’re about how much (or how little) sunlight we get.
If you know me, or if you’ve followed this blog a while, you know sunlight really matters to me. The skylight in my living room was a key buying point for my condo, and enough south-facing windows was always a requirement.
I may love the night and the lights, but I thrive on sunlight.
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56 Comments | tags: autumnal equinox, darkness, equinox, fall, Hal Clement, science fiction books, SF Books, sunshine | posted in Brain Bubble, Science
Today is the first Earth-Solar event of 2021 — the Vernal Equinox. It happened early in the USA: 5:37 AM on the east coast, 2:37 AM on the west coast. Here in Minnesota, it happened at 4:37 AM. It marks the first official day of Spring — time to switch from winter coats to lighter jackets!
Have you ever thought the Solstices seem more static than the Equinoxes? The Winter Solstice particularly, awaiting the sun’s return, does it seem like the change in sunrise and sunset time seems stalled?
If you have, you’re not wrong. Here’s why…
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26 Comments | tags: derivatives, equinox, sine wave, Solstice, spring equinox, Summer Solstice, vernal equinox, Winter Solstice | posted in Life, Math

Fissure #8.
Wow, for the third time this month (third time in a week) I’ve realized the day calls for a post I hadn’t planned. The first time was when the MLB delayed the baseball season. The second time — the very next day — was Pi Day and Albert Einstein’s birthday.
This time it’s the equinox (and a friend’s birthday; shout out!). For those of us in the northern hemisphere it’s the spring (vernal) equinox, and that’s my favorite of the four annual solar node points (two equinoxes; two solstices). It means we have a whole half a year of light ahead.
So I just had to post something.
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11 Comments | tags: equinox, fissure 8, fissure vent, Kilauea, lava, magma, spring equinox, vernal equinox | posted in Life

Enjoying a nice morning!
I’ve definitely been feeling the wear and tear of my age lately. These past few weeks especially, a variety of things has conspired to do considerable pounding on my emotional balance. Simply put, it’s been a shitty transition into fall with the looming dark and cold of winter (the Autumnal Equinox was this past Monday).
And since I have an electrician coming tomorrow to try to solve the power outages that have affected half the circuits in my home, it ain’t over yet. On the other hand — counting blessings — the weather is finally fall-like (we had a bout of hot muggy misery last week); I’ve been really enjoying my morning walks; and I read one of the most delightful and brilliant science fiction books.
I’ll tell you about the book this coming Sci-Fi Saturday. Today I thought I’d show you why I love my morning walks!
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15 Comments | tags: autumnal equinox, electrical current, electricity, equinox, walking | posted in Life
In the March Mathness post I mentioned that one reason I love March is that it contains the Vernal Equinox, the official astronomical start of Spring. More importantly to me, it means six months of more daylight than darkness, and as much as I’m a night person, I prefer long, sunny days.
Well, today is the day! The equinox happened at 21:58 UTC (two minutes before 5:00 PM locally). What’s better is that, after all the miserable bitter cold and all that snow in February and into March, the weather is indeed finally turning. Deeply embedded in our mythologies is the idea of spring rebirth; New Year’s parties aside, this, today, is the true new year.
And the forecast is for muon showers!
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17 Comments | tags: Albert Einstein, equinox, muon, Special Relativity, spring, spring equinox, tau, vernal equinox | posted in Physics

Go Twins!
It’s officially fall, the season named after what the leaves are doing now (at least in places where they came up with the word, “fall”). Did you ever notice how the two seasons of transition both are named after action verbs? Or how appropriate those verbs are to the cycle of life happening in those transitions? Life springs forth to sunny summer and falls asleep to weather winter.
The autumnal equinox was at 08:21 UTC. Here in middle America, by a standard we call “Central,” summer fell at 3:21 AM. I slept through it, so I didn’t hear any noise it might have made. (Sometimes you can hear a distant thud, but that might be a whole bunch of leaves coincidentally all falling at once.)
Today also marks the final dozen (exciting!) games for my Minnesota Twins!
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5 Comments | tags: autumnal equinox, baseball post-season, baseball season, Chicago Cubs, Cleveland Indians, equinox, fall, Kansas City Royals, Los Angeles Dodgers, Major League baseball, Minnesota Twins, MLB, New York Mets, Texas Rangers, Toronto Blue Jays, Twins 2015, Win Twins | posted in Baseball