The hypothesis of God : with Koba Davitashvili

1. Entity type Lemma
2. Original titleღმერთის ჰიპოთეზა კობა დავითაშვილთან ერთად
3. Language term English
4. lemma author Pataridze, Tamara
5. lemma category Scientific theories and disciplines > Modern physics :QM - Scientific theories and disciplines > Cosmology- Anthropic principle
6. Publication date 17-07-2017
7. lemma manifestations Imedi TV
8. Keywords Big Bang - cosmology
9. Url Click Here
10. Lemma body

    1. Invited scholar : Dr. Alexander Tevzadze, Tbilisi State University, Department of Physics: Physics, Astrophysics, Astronomy: https://scholar.google.com/citations?user=0ztAcg4AAAAJ&hl=en.

       At the beginning of this interview, the journalist raises the issue of necessity of the concept of God (Creator) for the contemporary science and, specially, for physics. He refers to the story of encounter between Pierre-Symon de Laplace and Napoleon. Laplace was asked by Napoleon “why there was no place for God in his voluminous work?” He answered that, in his eyes, there was no need in this hypothesis. Speaking about the universe and its origin, the Physicist Dr. Alexandre Tevzadze exposed contemporary theories in physics dealing with this issue. However, he managed to exclusively discuss the scientific theories avoiding therefore any explicit speculation about the role of the God in this universe. Especially, he noticed that before Newton the issues of cosmology have always been discussed on the light of religious ideas. According to Dr. Alexandre, the first scientific theories have started to propose the model of infinite, static and eternal universe, without heaving the origin, neither the end. Even the model proposed by Newton was infinite, static and instable: in opposition to this, the universe, having been more than 13 milliards years old, appears to be stable. Soon, another problem was pointed out related to the concept of infinity. Indeed, if the universe was infinite, the light emitted by different stars and coming from everywhere, should have illuminated all the nocturne sky, which, in contrary, is never fully illuminated. The reason for this consists in the fact that our observation is limited by our cosmological horizon only. The most successful and trustful contemporary theory belongs to Einstein dealing with geometric gravity. Within this theory, the space is described in terms of the curved surface determining the trajectory of massive objects. This theory was arguing against the static nature of universe. Lately, Alexander Friedmann’s equations have shown expansion of space within the context of general relativity. This was demonstrated by the observation known as Hubble’s law. He demonstrated that the velocity of various galaxies receding from the Earth was approximately proportional to their distance from the Earth. This was the first observational basis proving expansion of universe. The Belgian Catholic Priest and astronomer Georges Lemaître proposed the Big Bang theory (the theory of inflation of universe) deriving from Habble’s law: indeed, working backwards in time, the universe must have been condensed and contracted, containing all the mass in initial singularity. This theory, however, has its own problems. The cosmic microwave background (CMB) is an electromagnetic (relictic) radiation that fills all space having, at the same time, the highly univariable (homogeneous) temperature. However, these lights spread from the different regions of universe are often beyond of the cosmological horizon of each other. The question arises: how then it becomes possible to maintain the thermal balance in whole universe? Inflation of universe shows to be exponential. The dark energy, which is the reason of this expansion, is to be considered as a property of the space. We suppose that at the first stage of his life, the universe contained mostly the visible matter; at the second stage, throughout the years and because of inflation, more hidden mass had appeared; Finally, at the third stage we see the role of the dark energy increasing. Thus, the future of the universe depends on the unknown proprieties of this dark energy. The space could be extended faster than speed of light and the dark energy is the energy of the space and not of the vacuum. In the future, the image of the universe based on gravitational waves can tell us more about the universe. Step by step we are getting close to this opportunity. Thus, resumes Dr. Tevzadze, before looking for metaphysical solutions to find out the answers to our questions, it would be preferable to exploit more deeply all the resources available in physics.