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We all know that gravity makes it possible for us to walk on land here on earth but it seems that there are still differences with how people view gravity. For example, the definition of gravity given by Einstein is different from that of Newton’s. Newton believed that gravity is a force but Einstein thinks differently. He thinks that gravity is “a type of distortion in the shape of space-time.”
If you find this hard to understand, this simply means that Einstein believes that gravity is a type of the fourth dimension. He believes that two objects that are moving will meet because instead of a straight line, they will encounter a sphere which will allow them to meet at one point in time.
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Both theorists described gravity as a gravitational field on a space. However, for Newton gravity is an instantaneous force. Action at a distance coupled to gravitational mass. This is conceptually different from inertial mass.
For Einstein the space is a 4-dimensional topological space (space-time) while for Newton the field is a vector field. His description of gravity would have an object on top of the static field; Einstein allows for the curvature of the Earth and for time.
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