What are the fundamentals of physics and its various branches?

[Yassine27]

How did you find PF?

A friend recommended it to me

Hey, my first name is yassine and my second one is esslaili, I'm from Morocco, and I am 17, I've always loved physics, and I want to learn more about relativistic and quantum physics, and also classical mechanics,

Thank you

 

[PeroK]