Once to light never back again

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SUMMARY

The discussion centers on the conversion of mass to light and the reverse process, specifically questioning whether light can be transformed back into mass. It is established that while atomic bombs can convert mass to light, there is no natural process known to convert light back into mass. The creation of heavy elements, such as gold and uranium, occurs through stellar processes, particularly during supernova explosions, where energy is released, allowing these heavier elements to form from lighter constituents.

PREREQUISITES
  • Understanding of mass-energy equivalence, specifically Einstein's equation E=mc².
  • Basic knowledge of nuclear physics, including concepts of atomic bombs and antimatter production.
  • Familiarity with stellar nucleosynthesis and the life cycle of stars.
  • Awareness of the periodic table, particularly elements heavier than iron.
NEXT STEPS
  • Research the process of stellar nucleosynthesis and how elements heavier than iron are formed.
  • Explore the principles of antimatter production, focusing on positron creation in particle physics.
  • Study the implications of mass-energy conversion in nuclear reactions and its applications.
  • Investigate the role of supernovae in the formation of heavy elements in the universe.
USEFUL FOR

Students and enthusiasts of physics, particularly those interested in nuclear physics, astrophysics, and the fundamental principles of mass and energy conversion.

WCOLtd
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I am no theoretical physicist, so please don't be too bothered by my lack of understanding.

I assume that things like atomic bombs can turn mass to light. But I have never heard of anything that can turn light back into mass. Does that happen in nature? Or is everything slowly turning into light as time progresses?
 
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Look up "http://hyperphysics.phy-astr.gsu.edu/hbase/particles/lepton.html" ".

In many facilities, this is how antimatter such as positron is produced.

Zz.
 
Last edited by a moderator:
Any element that is heavier that iron needs energy to be created (thus natural decay and radioactivity, which happen mostly with atoms heavier than iron, + isotopes of anything).

Yet, tons of elements heavier than iron are found in nature (gold, lead, uranium etc.)

These heavy elements, which are heavier than their separate constituents, were created naturally, by exploding stars.
 

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