Add Yahoo as a preferred source to see more of our stories on Google. A planet surrounded by the number pi with the first 15 decimal places highlighted. Pi is an irrational number, meaning it has an ...

When Ainsley Ramsey was in sixth grade she competed in a contest: Who could recite the most digits of pi? Ramsey was determined. "I did 100 digits and I won. And I remember getting a pie to bring to ...

For pie makers, winter can be brutal. "The first two weeks of January, everybody's on a diet. Everybody's on a budget. It's really hard to turn a profit in that first quarter,” said Paula Haney, the ...