- #1
Dmitry67
- 2,567
- 1
I have a massless and perfectly reflecting sphere or a box. Inside I have 0.5kg of matter + 0.5kg of antimatter.
Far away from this sphere I have a small test body. I detects a gravity from mass of 1kg.
Now matter and antimatter annihilate. As nothing happens outside, the test body is still detecting the same gravity. But there is no more 'rest' mass left.
My question is: the gravitation which comes from the sphere or a box - what components affect it and how much:
1 pressure of light
2 tension of the walls of the box (because they resist the pressure)
If 1 and 2 are oppoiste and equal what is left?
3 Stress energy tensor INSIDE the box? (from a light trapped inside?)
Thank you
Far away from this sphere I have a small test body. I detects a gravity from mass of 1kg.
Now matter and antimatter annihilate. As nothing happens outside, the test body is still detecting the same gravity. But there is no more 'rest' mass left.
My question is: the gravitation which comes from the sphere or a box - what components affect it and how much:
1 pressure of light
2 tension of the walls of the box (because they resist the pressure)
If 1 and 2 are oppoiste and equal what is left?
3 Stress energy tensor INSIDE the box? (from a light trapped inside?)
Thank you