Uncertanity Principle in Macrocosm

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SUMMARY

The discussion centers on the application of the uncertainty principle in macrocosmic scenarios, specifically using a 1000 kg car moving at 10 m/s with an uncertainty of 0.001 angstrom/s. It concludes that the uncertainty in the car's position, derived from quantum mechanics, is negligible compared to the macroscopic uncertainties caused by physical stresses and elastic deformation. The participants emphasize that while quantum mechanics governs microcosmic phenomena, its principles do not directly translate to macrocosmic objects like cars.

PREREQUISITES
  • Understanding of the Heisenberg Uncertainty Principle
  • Basic knowledge of classical mechanics
  • Familiarity with quantum mechanics concepts
  • Awareness of material properties such as stress and elastic deformation
NEXT STEPS
  • Research the Heisenberg Uncertainty Principle and its implications in various contexts
  • Explore classical mechanics principles related to motion and forces
  • Study the effects of stress and elastic deformation on materials
  • Investigate the differences between quantum and classical physics
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Physicists, engineering students, and anyone interested in the intersection of quantum mechanics and classical physics, particularly in understanding how uncertainty principles apply to large-scale objects.

PhyHunter
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A Macrocosm thing, example a car, can be exist two different places in the same time ?
 
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Why don't you work out an example. Suppose that you know that a 1000 kg car is moving at 10 m/s with a ridiculously low uncertainty of 0.001 angstrom/s. According to the uncertainty principle, what is the uncertainty in the position?

How do you think that quantum mechanical uncertainty in position compares with the uncertainty in the size of the car due to stresses and elastic deformation?
 
Last edited:
No. And neither can a "microcosm" thing.
 

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