3. Why are we what we are?

We all know what/how we are, at least from what we observe through our senses but do we know why we are what we are? That's what we are going to see in this post.

After centuries of research, Scientists came up with four fundamental forces that drive the whole universe, what we know. Also, there are theories that explain each force both theoretically and mathematically. They are as follows,

1. Strong force - Quantum Chromo Dynamics theory.
2. Weak force - Weak theory.
3. Electromagnetic force - Quantum Electromagnetic Dynamics theory.
4. Gravitational force - Unfortunately, there are so many theories which try to explain Gravity by combining Einstein's general theory of relativity with Quantum Mechanics.

Let's see a brief introduction to each of these forces.

1. Strong Force:
This is responsible for the stability of the nucleus of an atom. The strong force acts between nucleons and holding the nucleus together.

2. Weak Force:
This is responsible for the stability of an atom itself. This force acts between neutrons, protons and electrons. A neutron releases an electron and becomes a proton at smaller distances.

3. Electromagnetic Force:
This is responsible for most of the daily activities that we encounter. Starting right from seeing, hearing, feeling and anything that involves chemical bonds and reactions.

4. Gravitational Force:
 As we all know that this is responsible holding us tight to the earth otherwise we would be flying around (funny!) but the interesting fact is that without the correct amount of gravitational force no living being might have formed on earth!

You take any action or incident that occurs in this universe and it can be proven as an outcome of the interactions due to one or more of the above fundamental forces. Let us discuss them in detail in my next posts.