The Young Four Fundamental Forces
Gravity or "Gravitational Force"- Discovered as the first fundamental force by Issac Newton, and is also one of the weakest forces of the four. It is very important in our everyday lives and keeps you sitting in your seat right now and keeps us grounded to the earth, but on an atomic level it becomes less important compared to the other fundamental forces.
Electromagnetism or "The Electromagnetic Force"- As gravity keeps you in your seat with the force going down, Electromagnetism is the force that keeps you from going through your seat. It is the force that exists between all particles which have an electric charge. This is also the resistance force that we feel, for example pressing a hand against a wall. The force is also long range, and in principle, extending over an infinite distance.
Weak Nuclear Force- While the other three forces play a part in holding things together, the weak force plays a greater role in things falling apart, or decaying. It is stronger than gravity but is only effective at short distances. It is responsible for radioactive decay and nuclear fission and is responsible for most of the natural radiation in the universe today.
Strong Nuclear Force- The Strong Nuclear Force is responsible for binding protons and neutrons into "atomic nuclei". It is also the strongest of the four forces which implies why it is called the "Strong Nuclear Force". However it also has the shortest range, meaning the particles must be extremely close before its effects are felt.
(He bleeps himself out one time swearing, sorry if that's too offensive) This is Einstein's Theory of General Relativity
The Young Quantum Mechanics
If you were confused by these photos and why they are in this presentation then you are experiencing first hand Quantum Mechanics. As described in the video Quantum Mechanics at the atomic level is a game of chance and just like those last pictures, it is unpredictable, and you can't always predict the outcome. Quantum mechanics involves the Strong Nuclear Force, the Weak Nuclear Force, and also Electromagnetism, which is three of the four fundamental forces. It works with many different principles and is the branch of mechanics that deals with the mathematical description of the motion and interaction of subatomic particles.
String Theory My dudes
The String Theory- Labeled as "The Theory of Everything" because well, it connects everything. It connects all four of the fundamental forces together and works. The String theory states that there are 6 different dimensions, and if that didn't already throw you for a loop these strings make up everything in the universe. They are vibrating strands of energy that are 10^-33 cm in length and is the only reasonable connection that physicists have created that connects all four of the fundamental forces and still have it work. Physicists are still working on experiments to prove that the string theory is real and before the end of our lifetime they predict they will be able to answer that question.