Testable Structural Consequences of Cosmological Principle - Essay Example

?Introduction The surroundings around which man reside have been having various impact on him either directly or indirectly. As a result, he has continuously been exploring it to get a clear understanding of the interaction between him and them. Some of these objects are found on earth while others are found on the in space. To have an in-depth analysis of the situation, various stakeholders such as philosophers, physicists, and astronaut have been working together. Despite this, disagreements have been evident due to differences in education background. The main difference between cosmology and astronomy is that cosmology covers a wider scope while astronomy is narrower and limited to celestial bodies and their interaction. This paper seeks to give an in-depth analysis of the cosmological principle. Cosmological principle There have been various perspectives on the uniformity of the earth at any position. Some people do argue that the differences in the earth are there and evident which is in contradiction with the scientific point of view. The cosmological principle is entirely based on scientific principles and it argues that the earth is uniform irrespective of the point of reference. To many people, this is not observed to be so because they usually consider the physical features. In terms of physical features, differences are evident with some regions being mountainous while others are covered by water bodies. Despite this, the laws of physics have proved that they are applicable in all these situations without deviations. Due to technological advancement, there are various means used in observing the world mainly machinery with improved precision to identify any deviations (Ferreira, 2007). The cosmological principle has three implicit qualifications and two testable consequences. They usually play a significant role in ensuring a clear understanding of the entire principle is clearly got. The first implicit qualification “observers,” clarifies on the types of observers. The observers are not necessarily to specific persons, as most people would think. The second implicit qualification takes into consideration the term “looks the same.” This term usually takes into account the effects of the laws of physics. This is evident from the various experiment conducted at various locations on the earth. In critical analysis of the laws of physics, factors such as wavelength and electronic charge are observed to be constrained. The final qualification refers to distinction between large bodies around the earth, such as the sun, stars. It is evident that some galaxies moves towards the earth while other moves far away. It is evident that all these bodies are independent of each other but none of them violates the laws of physics. Testable Structural consequences of Cosmological principle Homogeneity-This mainly refers to the uniformity of the earth from various position an observer may view it. Isotropy-Isotropy refers to uniformity in observation despite looking in any direction in the earth (Cheng, 2005). Despite the differences in the principles, they are all interrelated. The cosmological principle is observed to be in line with the isotropy of other large bodies around the earth. Some of these bodies include radio galaxies, red shift, and cosmic microwave background radiation among others. These relations are observed to have a direct and indirectly impacts on the earth and thus their presence cannot be neglected. In addition, some observed characteristics are because of interaction between the various galaxies. A good example is the Sloan digital sky survey. The early cosmologies argued that the earth was at the center of the universe. After many years of research, Isaac newton in mid seventeenth century came up with the new cosmology. According to him, the earth is spherical and in constant motion around the sun in specified direction and path. The earth is not located adjacent to the sun with a very large distance between them. In his quest to understand the relation between the various bodies, he did a deep mathematical analysis. The result portrayed that the motion of all these bodies, which included the Galilean moons, earth, sun, and falling bodies obeyed a universal law referred to as the universal gravitation. In the universe, there are fixed stars, which produce the same light as the sun. In other words, the bodies around the earth were observed to have great similarities. Implications Cosmological theory presents the issue of uniformity in the earth, which has brought forth various researches to prove or disapprove it. Through violation of cosmological theories, new theories have emerged. A good example is the violation of homogeneity in which far galaxies appeared to have higher spectral redshift than near galaxies. This led to the discovery of Hubble flow. In understanding the universe, various theories such as the Bing Bang have been playing a significant role. Through various researches conducted to gain an in-depth analysis of it, more and more about the earth and the galaxies have been discovered. Some of the important points of consideration include space-time. This has been essential in providing a clear understanding of the red shift. Since much has been learnt from cosmological evolution, it is used as a reference point in other evolution that may occur in future. From research on observation of distant galaxies, there is a direct relationship between the distance from the earth and galaxies densities. In addition, heavier elements were not produced in the Bing bang but emerged from nucleosynthesis (Bondi, 2011; Bruhat, 2009). In my opinion, the cosmological principle is truly scientific. This is evident from its initial synthesis of the old cosmological principles to the new cosmological principle. In disapproving the old principle, scientist research conducted were necessary to give validity. In essence, scientific refers to a situation in which specified techniques are used in investigating, acquiring new information, or improving an already existing theory. This is what has been applied in the continuous evolution of the cosmological theory. Conclusion The universe has been affecting human existence, either directly or indirectly. This has made it necessary to study their interaction and evolvement. After numerous researches being conducted, various cosmological principles have been replaced with other on the ground of them being defective in one way or another. One of the scientists whose effort in cosmology cannot be neglected is Isaac Newton. The cosmological principle is mainly based on the laws of physics, which are applicable in all parts of the earth. References Bondi, Hermann. (2011). Cosmology. Cambridge: Cambridge University Press. Bruhat, Yvonne. (2009). General relativity and the Einstein equations. London: Oxford University Press. Cheng, Ta-pei. (2005). Relativity, gravitation, and cosmology: a basic introduction. London: Oxford University Press. Ferreira, Pedro. (2007). The State of the Universe: A Primer in Modern Cosmology. NY: Phoenix. Read More