- #1
Stephanus
- 1,316
- 104
Dear PF Forum,
I realize that there are 4 basic forces in our universe.
Two of them are gravity and electromagnetic force.
Electromagnetic travels at the speed of light.
And it seems that Gravity travels/propagates at the speed of light also.
Light is bent by gravity. What about gravity?
Is gravity bent by gravity?
In the picture above. Planet C will see star A1 as in position A2.
What about the gravity? Does C orbit the barycentre of A2-B-C, or the barycenter of A1-B-C?
Thanks
I realize that there are 4 basic forces in our universe.
Two of them are gravity and electromagnetic force.
Electromagnetic travels at the speed of light.
And it seems that Gravity travels/propagates at the speed of light also.
Light is bent by gravity. What about gravity?
Is gravity bent by gravity?
In the picture above. Planet C will see star A1 as in position A2.
What about the gravity? Does C orbit the barycentre of A2-B-C, or the barycenter of A1-B-C?
Thanks