It is a supplement to the book entitled „Unknown Earth – unknown hypotheses” (https://amzn.to/4dPba3s).

The centrifugal force at the surface, resulting from Earth’s rotation, is calculated in column HD (199) of the RESULT sheet in the file wzor91-www20.

https://unknown-earth.science/wp-content/uploads/2025/09/wzor91-www20.xlsx