Did you know that 80 percent of the information we receive comes through our eyes, and if you compare light energy to musical scales, it would only be one octave that the naked eye could see, which is right in the middle?
Sabíeu que el 80 % de la informació que rebem  ve pels ulls? I si comparem l'energia de la llum amb les escales musicals, a simple vista  sols veuríem una octava, que és just al mig.