cnet: Look! In the Sky! It’s a cloud! It’s a number! It’s… the first 1000 digits of Pi? On the afternoon of September 12, 2012, artist ISHKY, with Stamen Design, launched Pi in the Sky, a project that used skywriting to create quarter-mile tall

cnet: Look! In the Sky! It’s a cloud! It’s a number! It’s… the first 1000 digits of Pi? On the afternoon of September 12, 2012, artist ISHKY, with Stamen Design, launched Pi in the Sky, a project that used skywriting to create quarter-mile tall

cnet: Look! In the Sky! It’s a cloud! It’s a number! It’s… the first 1000