From “The Physics Factbook“:
The center of mass is the balance point of an object’s mass. If a pivot were placed at this point, the object would remain in place and be balanced. The center of mass of a system is not always at the geometric center of the system…. When a system is balanced around its center of mass, it is said to be in a state of equilibrium….
A person’s center of mass is slightly below his/her belly button, which is nearly the geometric center of a person. Males and females have different centers of mass — females’ centers of mass are lower than those of males.
Below are two videos on how men and women differ in their centers of mass (or gravity):
https://youtu.be/_YEmYqziusg
I took both tests — and, being a woman, I passed both.
I’m really interested in how our male readers do.
P.S. These tests should be administered to athletes who claim to be transgender!
~E