Isaac Newton, the world-famous physicist, once conducted an interesting experiment: he installed a trihedral prism in the path of an ordinary sunbeam, as a result of which it decomposed into 6 primary colors. It is worth noting that the scientist was initially able to distinguish only 5 segments from them, but then he decided that he would divide this beam by as many as seven, so that the number was equal to the number of notes. Last modified: 2025-01-23 12:01