Physicists have already managed to demonstrate the acceleration of light rays on flat surfaces, when acceleration caused the rays to follow curved trajectories. However, the new experiment expanded the boundaries of what can be shown in the laboratory.
For the first time physicists have demonstrated the acceleration of a light beam in a curved space.
The study, published in the journal Physical Review X, "opens the door to a new field of research on accelerated rays.
A successful experiment conducted by physicists at the Israel Institute of Technology, Harvard University and the Harvard-Smithsonian Astrophysical Center, will increase the research potential for further laboratory studies of phenomena such as gravitational lensing.
Carrying out such experiments in the laboratory, scientists will be able to study the phenomena predicted by the general theory of relativity of Einstein, under carefully controlled conditions.
So ? What is value of c now?