Fall
09/22/08
"Autumn arrives in the early morning,
but spring at the close of a winter
day."
Elizabeth
Bowen
Today comes Fall in
the Northern Hemisphere...
Spring in the Southern
Hemisphere...
The
most colorful seasons! Great for the soul! Great
for the eyes!
Have you ever
wondered how and why the leaves change color in the
Fall? Where do those hues of yellow, orange, red,
maroon, and purple come from?
Well, you know
that chlorophyll (substance in plants which give them
the green color) helps making the photosynthesis.
Photosynthesis is the process by which the plants
make their food: by using water and the carbon
dioxide from the air, plus the sun light, they
produce glucose (a kind of sugar).
The trees
store their glucose to use when there is a lack of
light and water - the winter time. When Fall (or
Autumn, in British English) comes, the days start
getting shorter and shorter, the trees start their
dormant period; the green chlorophyll starts fading
away from the leaves and we start seeing other colors
caused by various pigments like carotene (orange),
xanthophyll (yellow) and anthocyanin (red and purple)
- which were there before, in small portions, but we
couldn't see in the Summer because they were covered
up by the green chlorophyll.
What about
photographing all these beautiful colors and
shades?
Any time,
actually, is a good time to take good Fall pictures,
but you can get a special effect by photographing
colored trees in the morning, or late afternoon, when
the light provides interesting shadows. Tip: when
your shadow is longer than you are, that's a good
time to get a really cool effect! The light will
provide a special gloss to your
picture!
"Autumn is
a second spring when every leaf is a
flower."
Albert
Camus
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