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

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

Feb 01, 2024 327 likes •606 views

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

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The laws of the Nature are written in mathematics

  • Why study physics ?
  • To understand the laws that govern our

physical universe

  • The law of Nature is written in the

language of mathematics

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

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https://physics.info/

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https://physics.info/

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https://physics.info/

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https://physics.info/

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https://physics.info/

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https://physics.info/

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https://physics.info/

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https://physics.info/

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https://physics.info/

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https://physics.info/

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https://physics.info/

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https://physics.info/

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https://physics.info/

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https://physics.info/

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Characteristics

  • f physics laws

Quantitative Simple Beautiful Universal Predictive Verifiable

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Levels of physical laws

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

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Why the same law results in utterly different behavior of the same system?

Two separate aspect: the law itself and initial/boundary condition Example: Planets different orbit, different large galactic structures, totally different behavior in atoms

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Symmetry

Noether’s theorem

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Elegant example 1

  • Dirac’s Equation
  • Prediction of anti-particles
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Elegant example 2

  • Einstein’ s Equation
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Elegant example 3

  • Standard Model
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Conclusion

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