There is no “gravity”
There is “Density”!
There is “Magnetism”!
There is “Electricity”!
3-6-9
Did I shout “Wrong”?
To calculate the mass of earth we need to know the actual size. Since our drills can only penetrate 8 miles down, it is only theory of what’s at the center. If there is a center.
I base science on Tesla. He took theory and transformed idea into working reality!
Einstein, Lorentz, and the crumpled pile of flesh in the chair never created anything from their theories. At least Da Vinci put theories to practical use.
Tesla is the master of science!