Fundamental Forces of the Universe

The whole universe and everything in it is held together by four fundamental forces: Gravity, ElectroMagnetism, the Strong Force and the Weak Force. What do these four forces do, and how do they keep everything together?

The Four Fundamental Forces of nature – their origin & function
Four fundamental forces | Scale of the universe | Cosmology & Astronomy | Khan Academy
The Four Fundamental Forces – And Maybe a Fifth? | Answers With Joe
The Four Fundamental Forces Of Physics Explained
Have We Found The Fifth Force Of Nature?!
The Strong Nuclear Force
The Weak Nuclear Force: Through the looking glass
Why is the Weak Force weak?

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