hmm... ok... so... I am still puzzled by the “non-linear” characterization. I am not sure what “non-linear” space would be, similarly unclear what “non-linear” spacetime would be.
“hmm... ok... so... I am still puzzled by the “non-linear” characterization. I am not sure what “non-linear” space would be, similarly unclear what “non-linear” spacetime would be.”
Linearity: f(x+y) = f(x) + f(y).
Non-Linear: f(x+y) does not equal f(x) + f(y).
In Newtonian physics, only mass is considered for gravity.
Einstein equated mass and energy and stated that since they are equivalent, energy also creates gravity.
” similarly unclear what “non-linear” spacetime would be.”
Observations have shown precession of planets that cannot be resolved with Newtonian physics. Einstein’s spacetime General Theory accounts for the difference.