Is Elasticity Possible in Collisions at a Microscopic Level?

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SUMMARY

The discussion centers on the nature of collisions at both macroscopic and microscopic levels, specifically addressing the possibility of perfectly elastic collisions. It concludes that while macroscopic objects cannot achieve perfect elasticity due to the second law of thermodynamics, microscopic collisions, such as those between elementary particles, raise questions about spatial occupancy and interaction. The inquiry into whether particles can occupy the same point in space simultaneously, as seen in electron-positron annihilation, is a focal point of the conversation.

PREREQUISITES
  • Understanding of the second law of thermodynamics
  • Basic knowledge of particle physics, specifically elementary particles
  • Familiarity with concepts of elastic and inelastic collisions
  • Knowledge of quantum mechanics and spatial occupancy principles
NEXT STEPS
  • Research the implications of the second law of thermodynamics on macroscopic collisions
  • Study the principles of elastic and inelastic collisions in particle physics
  • Explore quantum mechanics related to spatial occupancy of particles
  • Investigate the process of electron-positron annihilation and its significance
USEFUL FOR

Physicists, students of particle physics, and anyone interested in the fundamental principles of collisions and thermodynamics.

Delta2
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About collisions of macroscopic objects:

- Can they be perfectly elastic in reality? If not is this a consequence of the 2nd thermodynamic law?

About microscopic collisions (between molecules, atoms or elementary particles)

- Can they be perfectly elastic? A collision between two elementary particles means that they really come in contact thus occuping the same point of space at the same time? (e.g annihilation between a positron and an electron happens when both lying in the same point in the same time?)
 
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