π Day 2014

Don’t appreciate the significance of π?

Well …

Here’s what we can do because of it:

• Find circumferences and areas of circles
• Measure volumes and surface areas of spheres
• Determine probability and statistical distributions
• Calculate the period of a pendulum
• Determine the fundamental interaction of gravitation in curved spacetime
• Pinpoint a particle’s position at the expense of it’s energy (and vice versa)
• Help figure out the fate of the universe (Einstein’s cosmological constant)
• Respect the law of the electric force
• Explore the magnetic permeability of free space
• Appreciate the heights of beauty (Euler’s Identity)

And much, much more!  Wikipedia lists 76 equations where our little friend holds a prominent place.

Happy π Day!