It's one of our favorite days of the year, Pi day, a celebration of all things round. And why is it green? As Bucky Fuller would remind you, a circle encloses the maximum area per unit of perimeter, a sphere the maximum volume. It is theoretically the most efficient form.
Four years ago, Warren pondered all things round, including his favourite, the bicycle, noting Britain's Burgeoning Bicycling Boom.
On Planet Green two years ago, Kelly baked a yummy mushroom pi, describing how the family takes it very seriously:
My son, being a bit of a hipster geek, if truth be told, always celebrates Pi day which occurs on the 14th of March. 3.14—you get it. It's just a bit of lighthearted silliness. Sometimes Hugh gets his friends together and they bring pies and they eat them in public places. It gets messy.
We also did a roundup of round and rotating houses, that Put a Whole New Spin on Green Design
Interestingly, just the other day I discovered Rotonda, a round subdivision in Florida, where everyone lives on roads laid out like pieces of pi. I wonder if they are celebrating today.