- #1
mdeng
- 68
- 1
We all know magnetic fields can be blocked by metal, light can be blocked by
non-transparent materials, forces exerted from object of momentum can be
blocked by placing another object in between, except gravitational pull. This
is very much counter-intuitive.
GR provides a good explanation why gravity can't be blocked. According to GR,
the only way to "block" gravity is to have a counter force (e.g., a flying
rocket, but not a stationary object) to cause us to de-accelerate to an inertia
state, or to have a counterforce to prevent the initial acceleration to start
with (e.g., place another "Earth" above our head to cancel Earth's gravity.
Can we say this gives an intuitive reason why GR should be right
non-transparent materials, forces exerted from object of momentum can be
blocked by placing another object in between, except gravitational pull. This
is very much counter-intuitive.
GR provides a good explanation why gravity can't be blocked. According to GR,
the only way to "block" gravity is to have a counter force (e.g., a flying
rocket, but not a stationary object) to cause us to de-accelerate to an inertia
state, or to have a counterforce to prevent the initial acceleration to start
with (e.g., place another "Earth" above our head to cancel Earth's gravity.
Can we say this gives an intuitive reason why GR should be right