Pi - The number π is a mathematical constant that is the ratio of a circle's circumference to its diameter, and is approximately equal to 3.14159. Wikipedia In high school I wondered why in the world I would need to understand pi, you know 3.14.  Math and I got along just enough to get through.  Now I know!  I have actually used pi in a practical application.  Very exciting for a non-math type.  I used pi to figure out how to pattern a winch cover.  Winch covers are valuable for protecting those important winches that help give us ability to manage lines under load.  And they have a habit of getting lost or blowing away in a storm.  It's likely you'll need to make extras at some point. Materials you'll need: - Sunbrella - Read more [...]