Posts tagged “hair conditioning”

  1. Until the late 1920s, air was not conditioned, though it was circulated through fan blades. Thereafter, scientists developed a means for creating a cooling effect through the evaporation of chemical substances. Conditioning, or taking action to put something in a better condition, comes from a rather simple Latin word, condicere, or "to speak with." That which was spoken between two parties became a “condition,” and came to refer to a more formal stipulation made to…

    18 comments