At the present time, the values of the dimensionless physical constants cannot be calculated; they are determined only

Question: At the present time, the values of the dimensionless physical constants cannot be calculated; they are determined only by physical measurement. What is the minimum number of dimensionless physical constants from which all other dimensionless physical constants can be derived?
- Keywords:
  constant,
  measurement,
  physical
Asked by khian to Christie, Dan, David, Dawn, Sian on 22 Jun 2016.
- Dawn Lau answered on 22 Jun 2016:
  
  If it’s on the list of unsolved physics problems on Wikipedia…we probably can’t answer that question 😀 at least I definitely can’t! https://en.wikipedia.org/wiki/List_of_unsolved_problems_in_physics
- David Robertson answered on 22 Jun 2016:
  
  Become a physicist and see if you can answer this question 🙂
- Sian Thomas answered on 22 Jun 2016:
  
  Even my English is struggling to understand the question! If you understand it and know what to expect in a good answer you should apply to be a scientist on here!

Question: At the present time, the values of the dimensionless physical constants cannot be calculated; they are determined only by physical measurement. What is the minimum number of dimensionless physical constants from which all other dimensionless physical constants can be derived?