Is there plank speed?

  • #1
If plank time is the time it takes a photon to travel a plank length and speed is d/t or meters/second. then is the speed of light c plank speed? is the constant speed of light evidence of plank time?
 

Answers and Replies

  • #2
CompuChip
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Yep, I guess.

Note however, that the speed of light is a physical constant and in fact the meter is defined in terms of it. A unit like the Planck time and Plank length are also defined in terms of other fundamental constants, e.g. [itex]t_\mathrm{P} = \ell_\mathrm{P} / c[/itex] where [itex]\ell_\mathrm{P} = \sqrt{\hbar G c^{-3}}[/itex] is defined in terms of c and two other fundamental constants. So it's basically by construction, which I wouldn't call "evidence".
 
  • #3
Dale
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evidence of plank time?
What does that mean? Do you need evidence of ounces, or teaspoons? What does it mean to have evidence of a unit?
 
  • #4
1
0
Meter is a definition, second is. (Teaspoons also). So it is better to set c as 1. And lp as 1.

Sincerely.
 

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