Action/reaction : if we do an action that requires energy of the whole universe

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SUMMARY

The discussion centers on the implications of Newton's 3rd law of motion in the context of the universe as a whole. It posits that if the universe (object A) exerts a force, the reaction (object B) remains undefined, raising questions about potential transformations of the universe and the conservation of energy. The conversation suggests that such an action could lead to a significant event, potentially akin to a new Big Bang, emphasizing the principle that energy cannot be created or destroyed.

PREREQUISITES
  • Understanding of Newton's 3rd law of motion
  • Familiarity with the concept of energy conservation
  • Basic knowledge of cosmology and the Big Bang theory
  • Awareness of Mach's principle
NEXT STEPS
  • Research the implications of Newton's 3rd law in cosmological contexts
  • Explore Mach's principle and its relevance to the universe's behavior
  • Investigate theories surrounding the Big Bang and cosmic transformations
  • Study the conservation of energy in closed systems
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Physicists, cosmologists, students of physics, and anyone interested in the fundamental laws governing the universe and their implications.

dorohn
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what would the reaction to it be? Just suddenly has this question popped up in my mind.

Does this mean the universe would transform into something else through the reaction? Because after all energy cannont be created or destroyed. Maybe a new big bang?
 
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Newton's 3rd law?

Action/reaction refers to force pairs in Newton's 3rd law: If object A exerts a force on object B, object B exerts an equal and opposite force on object A. If "object A" is the entire universe, what could possibly be "object B"? Perhaps you can restate your question.
 
dorohn said:
what would the reaction to it be? Just suddenly has this question popped up in my mind.

Does this mean the universe would transform into something else through the reaction? Because after all energy cannont be created or destroyed. Maybe a new big bang?

You may be interested in Mach's principle, at http://en.wikipedia.org/wiki/Mach's_principle[/PLAIN]
 
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