The laws of the To understand the laws that govern our Nature are - PowerPoint PPT Presentation

• Why study physics ? The laws of the • To understand the laws that govern our Nature are physical universe • The law of Nature is written in the written in language of mathematics mathematics

https://www.businessinsider.com/17-equations-that-changed-the-world-2014-3?IR=T

https://physics.info/

https://physics.info/

https://physics.info/

https://physics.info/

https://physics.info/

https://physics.info/

https://physics.info/

https://physics.info/

https://physics.info/

https://physics.info/

https://physics.info/

https://physics.info/

https://physics.info/

https://physics.info/

Quantitative Simple Beautiful Characteristics of physics laws Universal Predictive Verifiable

Fundamental, e. g., Maxwell laws on EM, second laws of thermodynamics, quantum mechanics, Newton’s law, thermodynamics, Navier-Stokes, relativity Empirical/phenomenological – Nuclear Levels of model, frictions, climate, … physical laws Some equations are just definition but not physical laws themselves

Why the same Two separate aspect: the law law results in itself and initial/boundary condition utterly different behavior of Example: Planets different orbit, different large galactic the same structures, totally different behavior in atoms system?

Symmetry Noether’s theorem

Elegant example 1 • Dirac’s Equation • Prediction of anti-particles

Elegant example 2 • Einstein’ s Equation

Elegant example 3 • Standard Model

Conclusion • If you wish to understand the laws of physics, be good in mathematics