What Are Non-Astrophysical Examples of Experimental Evidence for E=MC^2?

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Discussion Overview

The discussion revolves around seeking non-astrophysical experimental evidence for Einstein's equation E=mc². Participants explore various examples and clarify misconceptions regarding nuclear processes.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant initially suggests nuclear fission as evidence but questions its relevance due to its occurrence in stars.
  • Another participant clarifies that fission is not typically associated with stellar processes and mentions particle accelerators as evidence for matter-energy conversion and the relationship between energy and inertia.
  • A participant acknowledges a misunderstanding, realizing that fusion occurs in stars rather than fission.
  • A later post reiterates the initial inquiry and proposes nuclear fission and fusion bombs as examples of E=mc² in action.
  • One participant discusses alpha decay, stating that the "missing" mass is converted into gamma rays, citing this as an example of E=mc², while noting that some may contest the classification of this process as fission.
  • Another participant emphasizes that mass is conserved in these examples, referring to "relativistic mass."

Areas of Agreement / Disagreement

Participants express differing views on the classification of nuclear processes and the relevance of certain examples, indicating that multiple competing perspectives remain without a consensus.

Contextual Notes

Some participants highlight limitations in definitions and the context of mass conservation, particularly regarding the term "fission" and its application in different scenarios.

Brewer
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I have a question that asks for experimental evidence for Einsteins famous E=MC^2 equation that isn't from an astrophysics, but the only evidence I can think of is nuclear fission, but I'm sure this occurs in stars in some way. Would this count as evidence that isn't from astrophysics or would you suggest another type of evidence to satisfy the question?

Any hints as to what the other evidence might be?
 
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Fission isn't normally done in stars. Particle accelerators also provide evidence both of conversion of matter to energy and the other side of the coin: the inertia gained with energy.
 
No I realized that after a further read through my textbook. Its fusion in stars!

Thanks though
 
Brewer said:
I have a question that asks for experimental evidence for Einsteins famous E=MC^2 equation that isn't from an astrophysics, but the only evidence I can think of is nuclear fission, but I'm sure this occurs in stars in some way. Would this count as evidence that isn't from astrophysics or would you suggest another type of evidence to satisfy the question?
Any hints as to what the other evidence might be?
The fission and fussion bombs that have been detonated in this world are pretty good examples of the relationship E = mc2 holding true.

Pete

Note: There are instances of when E = mc2 does not hold, e.g. when a body is under stress.
 
in experiments with alpha decay, the "missing" mass from the remaining particle is transformed into gamma rays via E=mc^2
 
simon009988 said:
in experiments with alpha decay, the "missing" mass from the remaining particle is transformed into gamma rays via E=mc^2
..which is an example of fission (although some people don't like to define the term "fission" in that way - but I do).

It should be noted that mass is conserved in these examples (i.e. "relativistic mass" is conserved)

Pete
 

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