Thursday, December 2, 2010

What Causes Leaf Shadows?

You’re enjoying a walk on an autumn day after a rain.  You notice the prints of maple leaves on the concrete sidewalk or on the asphalt roadway where leaves soaked by the rain have dried and blown away.

You’re puzzled.  How does that happen?

You’ll know the answer in about one minute if you read Patterson Clark’s “Urban Jungle” column, “Leaf Shadows,” from the Washington Post.  CLICK HERE to read.

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