Gravity and time

[chis]

If gravity slows time, how and are they linked?

[mgb_phys]

How :
t = t_f sqrt(1 - 2GM/rc^2) M is the mass, r is the distance from centre of mass

Why :
simple answer - because that's what general relativity says.
complex answer - because thats the way the universe works.

[chis]

Yep that clears it aaaaall up.

Lol
Chris

[mgb_phys]

If you want to work out how much to adjust your GPS satelite clock, or how much longer you will live on the top floor of the apartment - then the equation tells you.
As to why, there are answers involving space time tensors, kerr metrics, relativistic frame dragging etc - but they pretty much come down "because it does" but with more maths.

[chis]

Ok it's complicated.
Thanks
Chris