What is the time arrow and why is it important in physics?

  • Thread starter Alfredo Tifi
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In summary, the time arrow is a concept in physics that refers to the observed direction of time in our universe, from past to future. It is important in physics because it helps explain the irreversible nature of many physical processes and phenomena, such as the increase of entropy in closed systems. The time arrow also plays a crucial role in the laws of thermodynamics and the concept of causality, which are fundamental to our understanding of the physical world. It is a fundamental aspect of our universe that has been studied and debated by physicists for centuries.
  • #1
Alfredo Tifi
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I am a chemistry teacher. In summer time I can also dedicate some time to my first passion, that is physics. My first concern and thread is about "time arrow".
 
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Welcome to the PF, Alfredo. :smile:
 

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