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but question is that why is gravity dependent of air?
According to gravitational law, every very massive particle [with mass] in the universe attracts every other massive particle [with mass] with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
By keeping in mind how can you justify and balance the force between Earth, Sun and the Moon when there is a total eclipse of Sun or in normal conditions.
The solar system does not work with the gravitational force alone. You need to include the angular momentum of the moon and earth as they orbit each other to balance this gravitational force and the angular momentum of the moon the earth and the sun as they to orbit each other. This has been fully understood and precisely predicted for hundreds of years.
syedbukhari39 These things are in no way mysterious and gravitation comes naturally out of an understanding of the basic processes that drive our universe there are in fact very few numbers and coupling parameters that are needed. Read the book "just six numbers" and that may help you understand how the rest of the scientific community understand how things work. Just because you do not know or understand something that does not mean that it is not understandable.
Quote from: syedbukhari39 - corrected by pc on 16/11/2010 11:07:21According to gravitational law, every very massive particle [with mass] in the universe attracts every other massive particle [with mass] with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.Gravitation isn't limited to large objects - every atom (or any other particle with mass) attracts every other.Quote from: syedbukhari39 on 16/11/2010 11:07:21By keeping in mind how can you justify and balance the force between Earth, Sun and the Moon when there is a total eclipse of Sun or in normal conditions.In what way could you possibly think that an eclipse would have any impact on gravitation?
In a technical sense (like this thread) "massive" means "having (any) mass".
[It is perfectly normal that one might] struggle to achieve an understanding, even if others find your inability frustrating.
"...the Earth (which is the lighter of the two)" - shouldn't this be heavier?
I think this thread should suffer the same fate.
Quote from: peppercorn on 17/11/2010 09:13:08"...the Earth (which is the lighter of the two)" - shouldn't this be heavier?NoThe earth is lighter than the sun (unless you don't believe in gravity).