The Minimum Speed in the Universe: An Exploration of the Cosmic Limit

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SUMMARY

The minimum speed in the universe is definitively established as 0 m/s, contingent upon the observer's inertial reference frame. While the speed of light is invariant and universally agreed upon, the concept of zero speed is frame-dependent, leading to discussions on the nature of velocity and rest. The discourse highlights that an object at rest in one inertial frame has a speed of zero, but this does not imply absolute rest across all frames. The conclusion drawn is that the minimum speed can only be defined within the context of an inertial reference frame, not universally.

PREREQUISITES
  • Understanding of Special Relativity and inertial reference frames
  • Familiarity with the concept of speed versus velocity
  • Knowledge of the speed of light as an invariant constant
  • Basic principles of quantum gravity and cosmological constants
NEXT STEPS
  • Research the implications of the speed of light in different inertial reference frames
  • Explore the relationship between quantum gravity and measurable velocities
  • Study the effects of the cosmological constant on cosmic measurements
  • Investigate the philosophical implications of absolute versus relative motion
USEFUL FOR

Physicists, cosmologists, and students of relativity seeking to deepen their understanding of speed, velocity, and the fundamental principles governing motion in the universe.

  • #61
Rob Benham said:
Given that measuring the speed of light over short distances requires a very precise clock, is there any significant time taken for the photons to be 'processed'* by the mirror to send them on their return journey?

*I've just read a little on what takes place but it seemed even more complex than I remember. Nowhere did I find a typical time taken.
Nobody is going to try to measure the speed of individual photons. How would you know when the photon was emitted at the source? If you want to pursue this subject, I suggest you open a new thread in the quantum forum.
 
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  • #62
OK, the OP is banned and his/her question was fully and completely answered in post 2. Is there any point in continuing?
 
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