Today is World 'PI 'Day, after the value of 'pi', of the famous pi x r squared formula for calculating the circumference of a circle, if you know the radius.
The first five figures of pi are:
3.1415...
...today being 3rd month, 14th day, 2015.
And there'll be special moments at 9.26am and 9.26pm today because the first eight figures are:
3.1415926.
There's even a reference to 'pi' in the Bible: 1 Kings 7 v 23.
Here's someone who knows the value of pi to the first 100 digits, ...
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