Did Gravity Remain Constant Since the Time of Dinosaurs?

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SharpSolaris
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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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