In around a decade Einstein single-handedly smashed Newton’s views on gravity which had been dominant in physics for a few centuries. By doing so he presented to the world a completely new and a very in-depth theory of gravity. Physicists have since been impressed by the elegance of the theory and its numerous implications for […]Read more "String Theory – part 10: Quantum Geometry"
The things we’ve been concerned with in the last three articles draws a very good picture for String Theory. It gives us a number of predictions that clearly distinguish it from the Standard Model, and from other theories of quantum gravity, such as Loop-Quantum Gravity and a few others. Not only that, but it unifies […]Read more "String Theory – part 9: Road to Experimental Proof"
cover credit: pinterest.com In his Special and General theories of Relativity Einstein resolved two of the three main conflicts in physics. And his theories radically changed our understanding of the Universe. String Theory, in turn, allowed physicists to find the resolution to the third contradiction which had remained, arguably, the most important and most challenging […]Read more "String Theory – part 8: Hidden Dimensions"
After the expedition of Sir Arthur Eddington had confirmed the prediction of General Relativity about the deviation of starlight’s straight path due to the gravitational pull of the Sun, one of Einstein’s students asked him how he would react if the prediction weren’t confirmed. Einstein answered: “Then I would feel very sorry for the dear […]Read more "String Theory – part 7: Supersymmetry"
The Standard Model of particle physics describes all elementary particles as point-like objects. Hence, they neither extend in any direction nor possess any internal structure. Despite its tremendous success in predicting any physical phenomena in particle physics, we can be sure that it is incomplete since it describes only three interactions, leaving gravitational interaction behind. […]Read more "String Theory – part 6: The Basic Principles"
In the last century our understanding of the Universe has gotten an unimaginable boost. Theoretical concepts of both General Relativity and Quantum Mechanics have allowed us to comprehend and, in some cases, even predict physical phenomena taking place on atomic and subatomic scales, and on the scales of the entire Universe, so to speak. This […]Read more "String Theory – part 5: General Relativity vs Quantum Mechanics"
In his Special theory of Relativity, which we were considering in the previous chapter, Einstein resolved the physical conflict which regarded the speed of light and our intuitive understanding of motion. He showed that our perceptions of motion need be changed when we are talking about objects that are moving extremely fast. However, soon after […]Read more "String Theory – Part 3: General Relativity – The Heart Of Gravity"