I always thought an umbrella was a pretty simple object useful when it rained or when the sun was extra hot. Never paid much attention to it, and never used it myself. My wife, on the other hand, is always on the alert of the weather and is cautious to carry an umbrella at the faintest sign of rain or bright sun.
Recently, I noticed her umbrella perched outside our front porch drying up after a heavy rainfall. I took a close look at the convenient subject and became aware that it was a little more complicated than I initially conceived. Then I decided to take pictures of the object. This is what I saw. Here we go.