Is there any place with no gravity force on earth ?
There is no place on Earth without gravity. However, you can experience zero gravity without leaving the planet. The starting point for general relativity is the equivalence principle, which equates free fall with inertial motion. The equivalence principle states that inertial effects are not “like” gravity or a simulation of “real” gravity; they are the same force. When you are in freefall, the inertial effect is zero, the same as zero gravity. You can experience this freefall whenever you jump into the air (except for the air drag). Also an aircraft ride (called the “Vomit Comet”) can let you experience freefall.
