THE COMPARATOR. “The difference is observable in relation to a set reference frame where light rays describe straight lines in the absence of the objects in question.”
https://link.springer.com/content/pdf/10.1007/JHEP07(2019)140.pdf
THE COMPARATOR. “The difference is observable in relation to a set reference frame where light rays describe straight lines in the absence of the objects in question.”
https://link.springer.com/content/pdf/10.1007/JHEP07(2019)140.pdf