Residents from the South Bay to San Francisco who looked to the heavens and saw a fleet of airplanes spewing skywritten digits, it turns out, were being treated to mathematical dessert.
Those who caught the beginning of the string could make out "3.14" -- making for the whimsical "Pi In The sky."
The stunt flew across the skies of San Jose, the Peninsula, and San Francisco followed by the website for San Jose-based art-technology network ZERO1, which kicked off its biennial art and technology showcase Wednesday, set to last into December.
According to the organization, ISHKY Studios deployed "five synchronized aircraft equipped with dot-matrix technology" to skywrite the first 1,000 digits of Pi.
Additionally, the studio says it has partnered with a satellite startup so that an orbiting satellite emits Pi's infinite sequence, with the aim of turning outer space into an art canvas.
The biennial -- meaning that it happens every two years -- will be centered in San Jose's downtown South First Area (SoFA) district and, according to its website, aims to showcase "a network of emerging artists sharing and presenting work during the opening weekend, as well as a series of exhibitions, programs, pop-up installations and performances being presented by ZERO1 and a growing list of partnering arts institutions that will serve as Biennial access points throughout the San Francisco Bay Area and beyond."
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