No matter what size a circle is, the circumference will always be 3.14 times bigger than the diameter!
Pi has uses in physics, astronomy, and mathematics. But also in engineering and architecture.
March 14 or 3/14 is celebrated as pi day because 3.14 are the first digits of pi. Math lovers around the world celebrate this infinitely long, never-ending irrational number.
While we know pi to trillions of places, we really don’t need them. Scientists can determine the spherical volume of the entire universe using just 39 places past the decimal, according to piday.org. NASA’s Jet Propulsion Laboratory only uses pi up to 15 decimal places for its robotic space and earth science missions.
Many interesting activities involve pi, for example the Buffon’s Needles. Take a large sheet of paper, at least 30 toothpicks, a ruler and a pen. Using a toothpick to determine the distance between them, draw a series of parallel lines on your paper. Then throw the toothpicks onto the paper at random. Next, take away any toothpicks that are only partially on the paper, or that didn’t land on the paper at all. Count how many are left on the paper. Also count how many cross a line. Divide the total number of toothpicks by the line-crossing toothpicks. Now multiply by two, and you should get pi!
So dear readers…… Have a good PI DAY!
