The world of physics is ruled by two leading theories, the general theory of relativity and quantum mechanics.
The general theory of relativity by Albert Einstein deals with gravity. This force is produced by the space-time curve of celestial bodies. In this model, time follows a smooth and predictable path and is only valid on a big scale. In contrast, quantum mechanics explains the behavior of elementary particles at the quantum scale. Space-time curves and time follow a complex path that is fluctuating and jittery.
Let me tell you how…….
According to Quantum mechanics, a particle can be found at different places at the same time.
Isn’t it Astonishing!
If we apply quantum mechanics to celestial bodies, it will lead to the total destruction of life. Imagine having more than two suns. Also, we can’t apply the general theory of relativity at the quantum scale. Gravitational force can’t be explained at the microscopic level. Hence, we need a unified theory. the theory of everything which explains both the general theory of relativity and quantum mechanics.
The smallest known constituent of an ordinary matter is an atom. Inside the atom, there is a nucleus and revolving electrons. Inside the nucleus, there are protons and neutrons. Inside protons, there exist quarks. Modern physics says quarks are the smallest particles of matter.
Are quarks really the smallest known elementary particles?
Wait! Wait! Wait!
We left with a surprise
In 1968, Gabriel Veneziano found a 200-year-old book to get equations of strong nuclear force. He built a structure using that information. It came out to be a string rather than a spherically shaped particle. The string is a dancing filament of energy that vibrates in different patterns produced by different frequencies. If we make a microscope, we would see the elementary particles as strings.
Due to these predictions and anomalies, the string theory breaks down.
1. In 1973, John Schwartz working on a mathematical proof of string theory found that it indicated a massless particle.
2. In the 1990’s, Kaluza put forth a bold suggestion. There are six extra dimensions that we do not experience in our day-to-day lives. These dimensions be large or small. String theory requires ten dimensions and one extra dimension of space to work accurately.
3. It predicts a particle with a speed greater than the speed of light named tachyons.
In 1984, the mathematical calculations of the equations gave its left-hand side equal to the right-hand side n = 496. The string theory was alive again. It was concluded that the massless particle is actually describing gravity named as the graviton. Graviton particle carries gravity at the quantum level.
We have always been curious to unlock the secrets of the universe. Still, one way or the other, we are unsatisfied with our researchers.
The string theory was able to explain the biggest question.
What was there before the big bang?
According to string theory, the 11th dimension space is stretched in the form of a membrane or brane. The universe is attached to this membrane. when two vibrating membranes collide or a membrane splits into two parts leads to the Big Bang.
Large Hadron Collider is the experiment working on it.
A large hadron collider is a machine. It makes particles in opposite directions near the speed of light collide. These collisions split into different elementary particles. If the amount of energy is less than the amount of energy before collision, gravity flies off into higher dimensions. We can conclude this from the observation. This happens due to its weak force of attraction.
What do you think……
Can string theory be the theory of everything?
Reference: https://penntoday.upenn.edu/news/making-sense-string-theory
Great untouched fact.
String theory be a most thrilling concept to understand the uncertainty of universe