About nano-Pi

Amaze and impress your friends with the only pendant in the world that contains 7 millions digits of Pi. Actually it's 7,150,000 digits of Pi. View with a microscope or use the QR code viewer app to see the etched digits.

Four Patents cover this technology. Much like a microchip fabrication process, we start with a lithographic process to etch over 6 billion pixels in a cleanroom. We then grow archival metal into the image and form it as a disc. The disc is optically bonded individually by hand to a watch crystal and then mounted into a pendant made from hand machined 304 stainless steel. The center piece is the Pi symbol made up of millions of diffractive elements to make it glow when a single source light hits it.