
What is gravity? - NASA
Newton's "law" of gravity is a mathematical description of the way bodies are observed to attract one another, based on many scientific experiments and observations. The gravitational …
What causes gravity? - Physics Stack Exchange
Feb 8, 2011 · However this is actually "how" gravity works. What causes gravity may still be a vague question since gravity, as per current wisdom, is a fundamental interaction in nature. …
Does time dilation cause gravity as explained in this video?
4 No, time dilation does NOT cause gravity. The simplest way to understand this is recognize that time dilation is a relative phenomenon, dependent on an observer's state of motion and their …
How much of gravity is caused by time dilation?
Jan 21, 2021 · Does this not contribute to gravity (by objects following the straightest line as depicted in this image)? Is gravity only caused by gravitational time dilation, if yes, why does …
general relativity - Can anyone explain me how time can bend …
Jul 2, 2015 · I am just 16 and curious to learn about Theory of Relativity. Can any one explain it simple enough for me to understand? I read that it is bending of time-space or space-time that …
gravity - Why and how the masses attract each other? - Physics …
Mar 21, 2017 · We generally say that the gravitational force acts between the two bodies of some masses. Why and how that force is generated? What is the main mechanism behind this force?
general relativity - Why would spacetime curvature cause gravity ...
Mar 12, 2014 · Gravity then becomes the gradient of this energy density or the curvature of the surface of constant energy. So, highly curved spacetime means big changes in energy density …
What is gravity and what causes the existence of gravity?
Feb 2, 2020 · The Newtonian model of gravity , where gravity is a force, gives perfect predicition for small velocities compared to the velocity of light, and small masses compared to the mass …
What makes stars shine - NASA
The missing mass is converted into energy. It is this energy which causes the star to shine and stops it from collapsing due to the pull of gravity. Does the conversion of this tiny bit of mass …
newtonian gravity - What causes gravitational force? - Physics …
Nov 30, 2020 · In Newtonian mechanics, mass is what causes gravitational "pull". It is a pull,and only a pull, between any two masses and all masses. The magma is not itself a source of …