Pi Necklace with 18" Chain, Sterling Silver

Handcrafted in Oregon, this 1” sterling silver necklace will start an “irrational” conversation! S925 Sterling Silver, 18” sterling silver chain. Jewelry pouch included.

Why celebrate Pi in Astronomy? Useful for all kinds of calculations, it is also important to scientists who work with planetary bodies and the spacecraft that visit them. It is also used by NASA scientists to calculate the distance between stars in a projection of the sky (spherical trigonometry – a special kind of geometry)