The anthropic principle says that the universe is extremely fine-tuned to host the life. To explain the fine-tuning of the constants of nature, mainly we have three ways. The first way is to explain that with a more fundamental theory. But the important problem is that how far we can move towards a more fundamental theory? The second way of explaining the fine-tuning of the constants of nature...
Variation in fundamental constants provide an important test of theories of grand unification. Potentially, white dwarf spectra allow us to directly observe variation in fundamental constants at locations of high gravitational potential. We study hot, metal polluted white dwarf stars, combining far-UV spectroscopic observations, atomic physics, atmospheric modelling and fundamental physics, in...
As finite observers stationed here and now at the center of our universe, we observe ourselves and our nearby present world as being in a state of rest or low-velocity and conditioned by linear time. The geometry of our present world (space-time) appears to be approximately Euclidean, verifying Euclidean laws and analytic principles of organization. In this Euclidean zero-force world, any...
