Did Gravity Remain Constant Since the Time of Dinosaurs?

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The discussion revolves around the stability of the gravitational constant and the potential for measuring changes in gravity over time. Participants assert that for gravity to change significantly, there would need to be a corresponding change in Earth's mass, which lacks evidence outside of theories like moon formation. Current observations consistently support the gravitational constant's stability. The conversation also touches on the possibility of measuring gravity in the past through observations of distant space objects, such as binary stars or pulsars, and whether these observations can validate current gravitational theories. However, there is a noted lack of information on historical measurements of the gravitational constant based on space objects. The discussion emphasizes the application of existing theories to observed phenomena to support or challenge current understanding of gravity.
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How do we know that gravity did not change very much? We have the such facts?
For example - can we measure the gravitational constant in space? Use double stars, in millions of light years, etc.
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Sorry my English is bad.
 
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For gravity to change, you would need a change in the mass of the earth. There is no evidence such a thing happened (outside of moon formation theories).

Current observations all agree with the gravitational constant.

No, gravity did not "crush the dinosaurs".
 
I agree. But can we verify or "measure" the gravity of the past?
For example - what say about this observation of space objects? After all, we see space objects as they were in the past.
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Can we see the gravitational constant, a binary pulsar or binary star?

g=Fr2/(m1 m2)?
 
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SharpSolaris said:
I agree. But can we verify or "measure" the gravity of the past?
For example - what say about this observation of space objects? After all, we see space objects as they were in the past.
---
Can we see the gravitational constant, a binary pulsar or binary star?

g=Fr2/(m1 m2)?

We observe objects in space, we apply our current theories (such as the equation you show) and if it fits, it supports the theory.
 
I'm looking in all languages, ​​and cannot find any information on this.
Someone was relied in calculations the gravitational constant, based on space objects? Someone was do checking is the gravitational constant based on space objects?
Maybe you know?
 
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