Following in yesterday’s track, here is Pentad, “the next level of cosmic design… symbol of life itself.”*

©Kathleen O’Brien, The Mystery of Numbers, Pentad, 12 x 7.5″

Pentad is a Golden Rectangle.

©Kathleen O’Brien, The Mystery of Numbers, Pentad, detail, square

The method of construction is complicated, was kept secret until Luca Pacioli (da Vinci’s teacher) published Divina proportione in 1509. Taking this square away, the next Golden Rectangle remains;

©Kathleen O’Brien, The Mystery of Numbers, Pentad, detail, Golden Rectangle

©Kathleen O’Brien, The Mystery of Numbers, Pentad, detail, square

The geometry of the Pentad is see often in nature, like the seeds of the apple, a starfish, our own hands. Taking this square away, the next Golden Rectangle remains;

©Kathleen O’Brien, The Mystery of Numbers, Pentad, detail, Golden Rectangle

The ephemera is of Forget-Me-Not, and the five botanicals are Forget-Me-Nots. What are your associations about five?

See also this post to learn about Helen Davey’s musical interpretation of this piece and her 52 week project to compose music for art…

*Words in Quotes are from Divine Proportion by Priya Hemenway

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