Proposing a Experimental Astronomical Test to the Existence of the   Quantum Strings
  It is proposed a model of Kaluza Klein that does make the quantification of the electric charges without magnetic monopoles. This model of Kaluza Klein allows to calculate de radius of compactation proposed for Klein. The model is of Kaluza Klein, but it has consequences in the theory of the quantum strings, and it is possible to indicate a manner of to test the existence of the quantum strings.The model indicates that: if the quantum strings exist really, the cosmological variation of the fine structure constant would do quantum jumps. If this variation is continuous, the quantum strings does not exist.It is possible to the astronomers to decide this. 
Paulo da Costa Moreira