Pi Day Planning

Pi Day is one of those geekish holidays that I don’t pay much attention.

Pi Day, by the way, is March 14th. 3/14. Ie., 3.141592653589793. The circumference of a circle divided by its diameter. π.

Fifteen digits of π is all NASA needs for its interplanetary missions. A calculation of the circumference of a circle with a diameter the distance of the Voyager 1 probe, 12 1/2 billion miles from earth, would be off by an inch and a half.

Forty digits of π are all you need to accurately calculate the size of the universe to the width of a hydrogen atom.

No, I’ve never eaten pie for Pi Day. I understand why people do — Pie and π — but that just seems silly. But I won’t mock anyone who makes a big deal about pie.

Especially key lime pie.

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