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lamp post
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positive charges are sources of electric field and -ve charges are sink. what are sources and sink of gravitational fields?
Putting aside general relativity, I would say that mass is the "source" of the gravitational field. There is no "sink".Originally posted by lamp post
positive charges are sources of electric field and -ve charges are sink. what are sources and sink of gravitational fields?
Originally posted by lamp post
positive charges are sources of electric field and -ve charges are sink. what are sources and sink of gravitational fields?
Originally posted by Nereid
What about anti-matter? Does a neutral anti-hydrogen atom (a hydrogen anti-atom? I mean a positron and anti-proton) fall to the floor of the chamber it's created in (somewhere in the CERN facilities, for example), or rise toward the ceiling (assuming other forces on the atom are balanced)?
To what extent has the gravitational interaction between matter and anti-matter been observed? What is the maximum deviation from theory consistent with the best experimental data? (or, how well do observations match predictions from theory?)
Originally posted by Nereid
What experimental data is there on the gravitational interaction of anti-matter?
IIRC, quite a few of the other properties of anti-matter have been tested experimentally, but I don't recall seeing anything on observations of gravity.
A gravitational field is a region in space where objects with mass experience a force of attraction towards each other. It is a fundamental concept in physics and is described by Einstein's theory of general relativity.
The sources of gravitational fields are objects with mass, such as planets, stars, and other celestial bodies. These objects create a gravitational field around them that can influence the motion of other objects in their vicinity.
According to Einstein's theory of general relativity, massive objects create a curvature in space-time, which is the fabric of the universe. This curvature is what causes the force of gravity and can affect the motion of objects in space.
No, gravitational fields cannot be shielded or canceled. The force of gravity is a fundamental force in the universe, and objects with mass will always exert a gravitational force on each other. However, the strength of the gravitational force can be weakened by increasing the distance between objects.
Scientists study sources of gravitational fields through various methods, including observing the motion of objects in space, measuring the effects of gravity on light and other particles, and conducting experiments using large objects with known masses. They also use mathematical models and simulations to understand and predict the behavior of gravitational fields.