- #1
Ahmed Nabi
- 2
- 0
Hi everyone!
I am new to cosmology and have come across this unbelieving interesting field quite recently ( after reading 'A Brief History of Time' to be honest ). This is my first post in PF.
Hubble first discover that the universe is expanding with non-constant, accelerating velocity. Also according to GR, gravity is caused by curvature of space-time caused by Earth's Mass. My question is, if Earth is (being a part of the expanding universe) expanding with accelerating velocity in a particular direction, where does the counter gravity produced by it goes? For simplicity, if we consider the elevator as Earth we can feel extra 'push' to floor while elevator is going upward. Where does that extra push goes in case of earth?
My question might seem a bit awkward to someone may be but I believe in 'no shame in asking question' principle :)
I am new to cosmology and have come across this unbelieving interesting field quite recently ( after reading 'A Brief History of Time' to be honest ). This is my first post in PF.
Hubble first discover that the universe is expanding with non-constant, accelerating velocity. Also according to GR, gravity is caused by curvature of space-time caused by Earth's Mass. My question is, if Earth is (being a part of the expanding universe) expanding with accelerating velocity in a particular direction, where does the counter gravity produced by it goes? For simplicity, if we consider the elevator as Earth we can feel extra 'push' to floor while elevator is going upward. Where does that extra push goes in case of earth?
My question might seem a bit awkward to someone may be but I believe in 'no shame in asking question' principle :)