30Check this link:
http://www.in.com/videos/watchvideo-what-on-earth-is-wrong-with-gravity-52-min-documentary-8388145.html
I WANT TO KNOW THAT IS IT TRUE THAT TIME VARIES FOR DIFFERENT PlACES around earth or any other place
For e.g. satellites revolve around EARTH ....they are used for gps systems...each satellte has its own clock ...on his journey around the Earth...controllers have to edit the time in some intervals though the change in time is very very very small becoz this very very small change in time can give error of 10km to us....
my question WHY THIS CHANGE TAKE PLACE AS THERE IS NO ERROR IN CLOCK ON THE GIVEN SATELLITE....
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5 Answers
62this is true..
basically it has to do with relativity.
Einstein Proposed that when time interacts with mass then the Space time bends.
Think of it like this..
Classical mechanics says that each mass creates a gravitational field in which the other masses interact...
Einstein refuted this and came up with a different theory. He said that due to the presence of mass, the space time fabric is bent.. this causes the masses to "move"
So that the time starts to move at a faster rate there..
This speed is really too large for our comfort and important in the GPS systems and the defect is so high that the accuracy will vary by around 9 km on a daily basis!!!
There is a beautiful video.. what is wrong with gravity (somethign by that name which explains that in a very good way... Will try to search and post that link for you)
62read this
http://www.thunderbolts.info/tpod/2006/arch06/060324spacetime.htm
I dont knwo if you will be able to understand it straight away but this is very very intersting
Another good explanation of the same...
http://netowne.com/naziufos/boblee/gravity.htm
1It is said that very few ppl understand relativity correctly.
I mean just few of Phds and few of the scientists all over the world.
When it was first proposed only two ppl understood it .(I think Galeman and some other fellow.... :P)
I always get confused.
But then I recall the decaying of pi mesons then things start getting into place.
...it is really slippery concept.
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