gravity

These words mean almost the same thing in everyday use. Sometimes scientists use "gravity" for the force that pulls objects towards each other, and "gravitation" for the theory about the attraction .The special theory of relativity describes systems where gravity is not an issue; by contrast, gravity is the central issue of the general theory of relativity.

In general relativity there is no gravitational force deflecting objects from their natural, straight paths. Instead, gravity is seen as changes in the properties of space and time. In turn, this changes the straightest-possible paths that objects will naturally follow. The curvature is, in turn, caused by the energy–momentum of matter. Spacetime tells matter how to move; matter tells spacetime how to curve.

For weak gravitational fields and slow speeds relative to the speed of light, the theory's predictions converge on those of Newton's law of universal gravitation. Newton's equations are used to plan journeys in our Solar System.

General relativity has a number of physical consequences. you probably know but gravity keeps us on the ground but not only us but every thing on earth  weighs 5,973,600,000,000,000,000,000,000 kg. thats what gravity keeps down so gravity keeps many things down. thank god gravity is here without it everything whould be floating right now even the laptop you are using right now to view this blog.