Exploring the Link Between Gravity and Time: A Fascinating Connection

In summary, gravity slows time according to the equation t = t_f sqrt(1 - 2GM/rc^2), where M is the mass and r is the distance from the center of mass. This is because it is a fundamental principle of general relativity, which explains how the universe works. The equation can be used to calculate adjustments for GPS satellite clocks and determine the effects of gravity on time in different locations. While there are complex explanations involving space time tensors, kerr metrics, and relativistic frame dragging, the ultimate answer is that it is just a fundamental property of the universe.
  • #1
chis
51
0
If gravity slows time, how and are they linked?
 
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  • #2
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 that's the way the universe works.
 
  • #3
Yep that clears it aaaaall up.

Lol
Chris
 
  • #4
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.
 
  • #5
Ok it's complicated.
Thanks
Chris
 

1. What is the link between gravity and time?

The link between gravity and time is known as gravitational time dilation, which is the phenomenon that time passes at different rates in different gravitational fields. This means that time moves slower in stronger gravitational fields, such as those near massive objects like planets or black holes.

2. How does gravity affect time?

Gravity affects time by causing time to pass at different rates in different gravitational fields. The stronger the gravitational field, the slower time moves. This has been proven through experiments and is an important concept in both general relativity and modern physics.

3. What is the significance of the link between gravity and time?

The link between gravity and time has significant implications for our understanding of the universe and the laws of physics. It helps us understand how gravity influences the behavior of objects in space and how time is relative to the observer's perspective.

4. Can we observe gravitational time dilation in everyday life?

Yes, we can observe gravitational time dilation in everyday life, although the effects are very small. For example, GPS satellites need to account for the difference in time caused by their distance from Earth's gravitational field in order to accurately transmit signals for navigation.

5. How is the link between gravity and time being studied and researched?

The link between gravity and time is being studied and researched through experiments and observations in the fields of astrophysics, cosmology, and quantum mechanics. Scientists also use mathematical models and theories, such as general relativity, to explain and predict the behavior of gravity and its effects on time.

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