rotation frequency - Robuta Search

https://www.aanda.org/articles/aa/abs/2025/06/aa53542-24/aa53542-24.html

Astronomy & Astrophysics (A&A) is an international journal which publishes papers on all aspects of astronomy and astrophysics

https://www.bls.gov/opub/mlr/2019/article/reduced-sample-rotation-frequency-in-hospitals-and-household-utilities.htm