US Patent: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9245059

A system and method for determining a location within a physical structure are described. The location within the physical structure can be determined by storing a model of a physical structure comprising a plurality of nodes connected by a plurality of struts, each of the nodes and struts of the model corresponding to respective nodes and struts of the physical structure; assigning a non-unique ID to each node of the model according to a pseudo-random sequence, wherein each node of the physical structure encodes the non-unique ID assigned to the corresponding node of the model; receiving a set of non-unique IDs encoded onto respective nodes of a contiguous subset of nodes of the physical structure; locating a set of non-unique IDs in the model corresponding to the received set of non-unique IDs; and determining a location in the physical structure from the located set of non-unique IDs in the model.

The ration of the most precise measurements of the mass of the proton and the mass of the electron is very closed to 694 multiplied by square root of 7.

See:

https://www.amazon.com/dp/B09RJNMZPV

The Geometry of Closed Packed Spheres

Mission statement: To change minds, to open eyes, to educate and inspire people designing and building better worlds.

Beauty makes beautiful things beautiful!

A sphere can be completely surrounded by exactly twelve other identical spheres. Close-packing of spheres helps us explore the shape of the physical space. A good design of a 3D structure shall obey the principles, freedom, and constraints imposed by the physical space around us.

Platonic Structures are complex 3D structures assembled from simple components using the patterns imposed by the close-packing of spheres. We have developed and patented ( in US and Canada ) software tools and methods for designing Platonic Structures and for guiding an operator to assemble these structures. Research is currently underway for using image processing and automation in assembling Platonic Structures.