by space wrapping. Is it possible a photon run a circle with a mass (such as
black holes) at the center with a proper radius?
what if it's not integer times of the photon wavelength?
o****d 发帖数: 5454
2
折射就行。
as
【在 m*d 的大作中提到】 : by space wrapping. Is it possible a photon run a circle with a mass (such as : black holes) at the center with a proper radius? : what if it's not integer times of the photon wavelength?
