Where gravity does not work?
Gravity is a fundamental force that acts everywhere in the universe and cannot be turned off. However, there are certain conditions in which gravity appears to be weaker or behaves differently than it does on Earth.
In outer space, away from the gravitational pull of any large bodies such as planets or stars, objects will float in a state of weightlessness. This is because there is no force of gravity acting on them.
In areas close to massive objects, such as black holes, the effects of gravity can be much stronger and objects may experience "strong gravity." In these areas, gravity can bend light, cause time to pass more slowly, and even create distortions in space-time itself.
Additionally, inside a spaceship or aircraft in orbit, astronauts can experience weightlessness because they are in free fall, meaning they are falling towards the Earth at the same rate as the spacecraft, so they do not feel the force of gravity.
In conclusion, while gravity is present everywhere in the universe, there are specific conditions in which it appears to be weaker or behave differently.