Is Planck Time and Length the Smallest Possible Units of Measurement?

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SUMMARY

Planck time, approximately 5.39 x 10^-44 seconds, is the shortest measurable time interval in which quantum events can occur, while Planck length, about 1.62 x 10^-35 meters, represents the smallest possible distance that can be defined in the universe. Objects cannot occupy the same space if they are separated by at least one Planck length, suggesting a "pixelated" nature of the universe rather than a continuous one. The discussion emphasizes the limitations of classical physics when approaching these fundamental scales, highlighting the need for quantum mechanics to fully understand these concepts.

PREREQUISITES
  • Understanding of quantum mechanics principles
  • Familiarity with Planck units
  • Basic knowledge of particle physics
  • Concept of spacetime in relativity
NEXT STEPS
  • Research the implications of Planck units in quantum gravity
  • Explore the concept of spacetime quantization
  • Study the role of Planck length in string theory
  • Investigate how quantum mechanics challenges classical physics assumptions
USEFUL FOR

Physicists, students of quantum mechanics, and anyone interested in the fundamental nature of the universe and the limits of measurement.

MathJakob
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Hope someone can clear this up for me, is Planck time the shortest possible time in which a particle or quark or anything can perform some kind of action?

Also is Planck length the shortest distance in which an object can actually move? Anything shorter than that and the object doesn't mean at all?

So take two objects x and y, the closest x can get to y is 1 Planck length until x occupy the same space as y?

Wiki is great but it's just to confusing. Do we basically live in a "pixelated" universe and not in a smooth flowing one?

I began to think if something is moving at 1m/s, I can keep halving it and halving it infinitely? Or until it reaches Planck time?
 
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