Gravity itself doesn't exist, however there are three models that approximate what we (or rather Newton) call gravity with varying degrees of success. Newtonian Mechanics sent man to the moon, put countless Satellites into orbit, and it can also send us to Mars. It's not right thought, Newton was right when he said that people wouldn't believe in a force that moves at infinite speed because it doesn't exist as a force, ergo "gravity" does not exist. You could also use Special Relativity (or General Relativity) to do those things I mentioned - but it's not necessary and overly complicated to achieve the same result of using Newtonian Mechanics. On the other hand you couldn't use Quantum Physics to do it.
For Religion & Health see:[/b][/size] Williams & Sternthal. (2007). Spirituality, religion and health: Evidence and research directions. Med. J. Aust., 186(10), S47-S50. -LINK
The WIN/Gallup End of Year Survey 2013 found the US was perceived to be the greatest threat to world peace by a huge margin, with 24% of respondents fearful of the US followed by: 8% for Pakistan, and 6% for China. This was followed by 5% each for: Afghanistan, Iran, Israel, North Korea. -LINK
"That's disgusting. There were clean athletes out there that have had their whole careers ruined by people like Lance Armstrong who just bended thoughts to fit their circumstances. He didn't look up cheating because he wanted to stop, he wanted to justify what he was doing and to keep that continuing on." - Nicole Cooke
The WIN/Gallup End of Year Survey 2013 found the US was perceived to be the greatest threat to world peace by a huge margin, with 24% of respondents fearful of the US followed by: 8% for Pakistan, and 6% for China. This was followed by 5% each for: Afghanistan, Iran, Israel, North Korea. -LINK
"That's disgusting. There were clean athletes out there that have had their whole careers ruined by people like Lance Armstrong who just bended thoughts to fit their circumstances. He didn't look up cheating because he wanted to stop, he wanted to justify what he was doing and to keep that continuing on." - Nicole Cooke