From the bacteria’s perspective it is on a two-dimensional surface but from a third perspective, it’s actually a three-dimensional shape. For example, let’s take a cuboid the size of a room and place a bacteria in the middle of the wall. They might be as big as our observable universe. But in contrast, it might also be true that they are actually too large for us to observe. So it could be true that the dimensions are curled up so small that our naked eyes or even our best microscopes cannot observe them. For the bacteria, the page would be three-dimensional as it would have height, width and length but for us it is only two-dimensional. There might be big easy to see dimensions but there might also be tiny curled up dimensions curled up so small even though they’re all around us that we don’t see them.įor example consider bacteria on a paper. It’s a possibility that the dimensions might come in two varieties. The very logical question following this bold statement would be- “If there are extra dimensions then where are they” He proposed that our universe might actually have more than the three dimensions that we are all aware of that is in addition to left-right back-forth and up-down. The very idea of extra dimensions dates back to the 1900s when a German mathematician named Theodore Kalua suggested a very bold and in some ways very bizarre idea. For the string theory to work, we don’t merely need to put four dimensions but 11 dimensions! The reason is that in three dimensions the strings won’t have enough room to wiggle and bring about the unique property. The mathematics of string theory is a little strange, and in placing the pieces together, physicists needed to add more and more dimensions of space to make their theories work, many more than the three we experience in our everyday lives. Similarly, the vibrations of the strings causes the unique property of matter and the forces. Every unique vibration results in a unique musical node. Consider these strings like the strings of guitar. Presently the string theory says: Various vibrations of this stringy stuff correspond to each of the fundamental particles producing the properties of gravity, light and other elementary substances and laws. And these two methods are completely incompatible. But the other three forces are written in the language of quantum mechanics. Gravity is described by Einstein’s beautiful mathematics of curved space and time. In physics we have four fundamental laws that underpin the universe: gravity, electromagnetism, strong nuclear force and weak nuclear force. The string theory states that inside quarks there are strings which vibrate at different frequencies causing the property of the substance. The atomic nucleus consists of nucleons-protons and neutrons. Inside it you would find millions of atoms bonded together. In physics, string theory represents a theoretical framework in which the point-like particles of particle physics are replaced by one-dimensional objects called strings. Currently, we have multiple theories and suggestions for the unified theory but the very promising and compelling one is “the string theory.” What is string theory? Scientists all over the world are currently engrossed in the quest of a unified theory where we unify all the laws of physics, be it Quantum mechanics or the Classical physics: all the laws collated in one single framework which could predict anything and everything. The biggest dilemma of Einstein’s life represents the search of a unified theory.
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