This repository contains code and artifacts for a 3-D printable sphere with bumps and valleys corresponding to the high and low temperatures of the Cosmic Microwave Background Radiation (CMBR). We map 0.0004 K (valley-to-peak) out of 2.73 K (0.015%) to 20% of the radius (valley-to-peak). That's an amplification factor of ~1365×.
├── README.md
├── binary_artifacts
│ ├── cmbr.stl: the raw output of cmbr_mesh.ipynb, a whole spiky sphere
│ ├── cmbr_bottom.stl: the bottom half of a cut-in-half sphere with a channel for a dowel
│ ├── cmbr_hollow_split.f3d: the Fusion 360 file containing all history of importing and repairing the mesh, turning it into a solid, then slicing in half and making suitable for a dowel
│ ├── cmbr_top.stl: the top half of a cut-in-half sphere with a channel for a dowel
│ ├── dowel.stl: the keyed dowel to connect _top and _bottom
│ └── ornament
│ ├── cmbr_ornament_bottom.stl: bottom half of solid sphere with a ring added for hanging (no dowel needed)
│ └── cmbr_ornament_top.stl: top half of solid sphere with a ring added for hanging (no dowel needed)
├── cmbr_mesh.ipynb: Jupyter notebook containing the executable Rust code to read Planck data, downsample, map, and output to an STL file
└── cmbr_mesh.pdf: Print to PDF of the Jupyter notebook
See the Jupyter notebook cmbr_mesh.pdf for details.
This work is licensed under CC BY 4.0. 
