<human>:  What are the major differences between the laws of physics in various countries?
<bot>: The major differences between the laws of physics in various countries are largely dependent on what type of physics is being discussed. For example, when it comes to classical physics, the laws of motion, gravity, electricity and magnetism are universal, and therefore remain constant regardless of geographic location. However, when discussing quantum physics and theories of relativity, the laws vary considerably from country to country depending on their respective scientific research and understanding.