Spring is coming!
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It has been a very long winter but Spring is just days away. How do we know? Spring equinox falls on March 21 each year. And, at the Bloomfield Township Public Library, our very own sun calendar shows us this is so in the Library lobby. Throughout the year, there are significant variations in the patterns that the sun makes on the lobby floor. Our library lobby is an ideal location for viewing the change of the sun through the seasons of the year. In this way, the Library has constructed its own sun calendar much as ancient man did in many places in the world.
Bloomfield Township resident John F. Marshall explains the theory and calculations used for our sun calendar on the attached booklet.
