Hello, readers! Welcome to the first installment of our series on general relativity, a captivating pillar in modern cosmology. In this posting, we embark on a journey to explore the depths of general relativity, unraveling its historical significance, fundamental concepts, and the mathematical treatment rooted in tensor analysis. Together, we will delve into the fascinating world of spacetime curvature and the profound implications it holds for our understanding of gravity and the universe at large. So, without further ado, let us commence this enlightening tutorial on general relativity! From special relativity to general relativity In 1905, Albert Einstein's proposal of special relativity propelled him into the spotlight as a rising star in the scientific community. The cornerstone of special relativity lies in the concept of coordinate transformation. To grasp this idea, let us consider a scenario involving a moving horse with a 30 miles per hour. Now, imagine two indivi...
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