Alberto Davila Aragon from Bristol, UK set a new world record by recalling 280 decimal places of Pi in one minute on Pi Day, ...

Pi, which is the ratio of a circle's circumference to its diameter, is celebrated with its own holiday on March 14.

Today, we are sharing a cute free Printable PNG 3d Spring Tulips Alphabet and Number Set. Our 3d Spring Tulips ... Read More ...