What’s going to happen? Not much really, so don’t wait up
until after midnight. It’s a little like an anniversary or a birthday.
While it is just a geometrical alignment, it is one that reminds
us about the passage of time, the motion of the Earth, and the
changing of the seasons. It marks the start of autumn.
What’s so special about it? There are a few special things you
can talk about [at school].
As summer wears on, the nights have been growing longer and
the days shorter. On this date, the night becomes longer than
the day! That’s just for us in the Northern Hemisphere. For our
friends in Australia [hi, Sarni!], it’s reversed. Spring has just begun
for them.
A minor point … if you look up the rising and setting time
of the Sun in the newspaper, it’ll look as if the day is still
a bit longer than the night. That’s mostly because “sunset”
and “sunrise” are defined by the top edge of the Sun, not the
middle of it, and the middle of the sun sets (rises) a few
minutes before (after) the edge does.
On this day, the Sun will begin to rise at the South Pole after six
months of darkness. It’s going to be daytime there for the next six
months! And yes, there are scientists who are living and working
down there now! They have a party to celebrate.
On this day, the Sun rises directly in the East, and sets directly in
the West..
On this day, the Sun passes straight overhead, at the “zenith” for
people on the equator, like in Kenya or Ecuador. When the Sun
passes straight overhead, there aren’t any shadows!
The equinoxes (there are two — the Vernal Equinox marks the first day
of spring) have a rich place in mythology and ancient traditions. Ancients
believed the gods guided the Sun across the sky, and so they paid
attention to the way that it moved. (of course, we [at least some of us]
now know that what’s really moving is us). They used a variety of tools to
watch that motion.
david,
another “autumn equinox” poem. will
address your last email on saturday, as my wife and i are attending a financial seminar tomorrow. as you said, :the old revolutionary adjusts his portfolio. ed /
autumn equinox / bluebirds shift / from
bath to branch / ocean stars / i too / am
a grain of sand / also, on the ” long whistle
of a northbound train,” could you credit
“haiku harves, autumn/winter 2005?”
thanks,
ed
Comment by ed markowski — September 22, 2005 @ 8:13 pm