theCandyman said:Why is gravity? What is it that causes attraction between two particles, no matter what their distance from each other or their masses or even what is between the two?
HallsofIvy said:To quote Isaac Newton on the subject "Fengo non hypothesen" ("I frame no hypotheses").
As to geometer's response, of course that leaves open the question why mass curves space.
Gravity is a force that exists between any two objects in the universe. It is responsible for keeping our feet on the ground and for keeping planets in orbit around the sun.
Gravity attracts because of the mass of an object. The more mass an object has, the stronger its gravitational pull will be. This is why larger objects, like planets, have a stronger gravitational pull than smaller objects, like rocks.
The force of gravity is caused by the curvature of space-time. According to Einstein's theory of general relativity, objects with mass cause a distortion in the fabric of space-time, which creates a gravitational pull towards the object.
Gravity works by pulling objects with mass towards each other. This force is always attractive, meaning it pulls objects towards each other, rather than pushing them apart.
No, there are other forces that can attract objects, such as electromagnetic and nuclear forces. However, gravity is the only force that acts over long distances and is responsible for the structure of the universe on a large scale.