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Flatiron/23rd Street Partnership and MoMath Kicked-Off the Flatiron Summer Series on the Summer Solstice with Solstice Poly-Star

Dozens of volunteers and participants stopped by the Flatiron Public Plaza throughout the afternoon on June 20th, the 2016 Summer Solstice, to help the Flatiron/23rd Street Partnership and the National Museum of Mathematics (MoMath) build a trigonal dodecicosidodecahedron! Yes, you read correctly. That is a three-dimensional geometric structure-- otherwise known as a polyhedron-- constructed of a dozen ten-pointed stars.

During the event, MoMath President and Founder Glen Whitney taught the ways in which a ten-pointed star captured the math behind the Summer Solstice. At “Solstice noon” or 12:57 p.m., the sun was 72° from horizontal, the same angle that is used in the points of the stars forming the trigonal dodecicosidodecahedron.

This event kicked off the Flatiron Summer Series, an eight-week series of free community programming for the neighborhood by the neighborhood. The series includes free tech education classes on Tech Tuesdays, free fitness classes on Wellness Wednesdays, and nostalgic games and performances on Throwback Thursdays. For a full list of free classes, activities, and entertainment on the Flatiron Public Plazas, visit


Spring is in the air at  <a target="_blank" href="">@mangia_nyc_official</a>and perfect for outdoor dining πŸ’šπŸ’«

πŸ“Έ:  <a target="_blank" href="">@cynstahgram</a>
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Spring is in the air at @mangia_nyc_officialand perfect for outdoor dining πŸ’šπŸ’« πŸ“Έ: @cynstahgram Flowers by @floratorium
2 days ago