# 10 Fascinating Facts About.... π (Pi) - Happy π Day 2018

HAPPY PI DAY: March 14th (3.14) is π day, and all around the world pi-philes are celebrating one of the most compelling and mysterious constants of Nature. Pi appears in equations describing the orbits of planets, the colors of auroras, the structure of DNA. The value of π is woven into the fabric of life, the universe and ... everything.

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