The statement you mentioned does not accurately reflect the views of Sir Isaac Newton and Albert Einstein on gravity. Both Newton and Einstein made significant contributions to our understanding of gravity, but their explanations differ in terms of their underlying concepts and mathematical frameworks.
Sir Isaac Newton, in his work published in the late 17th century, formulated the law of universal gravitation. According to Newton's theory, gravity is a force that acts between two objects with mass. He described gravity as a force of attraction that pulls objects toward each other. In Newtonian physics, gravity is explained in terms of masses exerting an instantaneous force on each other across space, resulting in the observed effects of gravitational attraction.
On the other hand, Albert Einstein's theory of general relativity, formulated in the early 20th century, provides a different conceptual framework for understanding gravity. According to general relativity, gravity arises due to the curvature of spacetime caused by mass and energy. In this theory, objects with mass or energy warp the fabric of spacetime, and the motion of other objects is influenced by this curvature. Instead of thinking of gravity as a force that pulls or pushes objects directly, Einstein's theory describes gravity as the curvature of the four-dimensional spacetime continuum, and objects move along the curved paths determined by this geometry.
In the context of general relativity, it is not accurate to say that gravity is a force that "pushes" objects. Rather, gravity is the effect of the curvature of spacetime caused by mass and energy, and objects move in a way that follows the curvature of this spacetime geometry.
It's important to note that Einstein's theory of general relativity provides a more comprehensive and accurate description of gravity than Newton's law of universal gravitation, particularly in extreme conditions and situations involving strong gravitational fields or high velocities. However, Newton's laws of motion and his law of universal gravitation are still valid and provide accurate predictions in most everyday situations at low velocities and weak gravitational fields.