Feeling irrational? It may be a sine to take some deep breaths and trace pi's digits by hand for a calming sensory experience.
The number pi (π) is a mathematical constant, approximately equal to 3.14159. It is defined in Euclidean geometry as the ratio of a circle’s circumference to its diameter.
Included:
Pi coin minted in solid copper in West Fork, AR
Solid Copper - 29 g
1.54 in (3.9 cm) diameter
Antiqued patina
This heavy copper coin feels good in the hand and the pocket. The copper coin blank is pre-tumbled before minting for a smooth edge and then given an antiqued finish.
Each Pi coin comes in its own wax-sealed packaging with useful and useless pi facts.
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