Zlaté sedmeré světlo, vůkol planoucí, duši ti dává směsice barev..., Light was the symbol of the Enlightenment or the Age of Light. The physics of light was widely studied and popularised at that time. The theoretical description of light inspired Maupertuis and Euler to formulate the Principle of the Least Action., Jiří Langer., and Obsahuje seznam literatury