# Sacred Cubit

> A research archive on the cubit: how ancient builders measured it, what its length means in physics, and the copper models we design from it. Facts are sourced, calculations are shown, and hypotheses are labelled as hypotheses.

Site: https://sacredcubit.com/
Publisher: Fan Yafu (范雅福) — https://yafuglobal.com/#person · ORCID https://orcid.org/0009-0004-3519-1203

## This site
- [The cubit, measured](https://sacredcubit.com/): A research archive on the cubit: how ancient builders measured it, what its length means in physics, and the copper models we design from it. Facts are sourced, calculations are shown, and hypotheses are labelled as hypotheses.

## Sources: 5D Library monographs cited on this site
- [The Sacred Cubit and Resonant Geometry / 神圣肘尺与谐振几何](https://5dlibrary.com/books/sacred-cubit-geometry/): DOI 10.5281/zenodo.23666560; chapter answers https://5dlibrary.com/answers/en/sacred-cubit-geometry/
- [The Default Mode Network, the Entropic Brain and Neural Oscillations / 默认模式网络、熵脑与神经振荡](https://5dlibrary.com/books/dmn-neural-oscillations/): DOI 10.5281/zenodo.23697320; chapter answers https://5dlibrary.com/answers/en/dmn-neural-oscillations/
- [Crystal Piezoelectricity, Iron-Nickel Meteorites and Photobiomodulation / 晶体压电性、铁镍陨石与光生物调节](https://5dlibrary.com/books/crystals-meteorites-photobiomodulation/): DOI 10.5281/zenodo.23698498; chapter answers https://5dlibrary.com/answers/en/crystals-meteorites-photobiomodulation/

## Optional
- [5D Library index](https://5dlibrary.com/llms.txt)
- [Founder profile](https://yafuglobal.com/llms.txt)