When music is played, the vibrations of the music effect all life in the vicinity. The effect that the music has will depend upon the way that the vibrations of the music are harmonically constructed. One of the factors that determines the effect of music is the particular musical scale from which the melody and harmonies are built.
Different scales create different modes and emotions.
During the late 1700's, scientists began identifying certain chemical elements for the first time. In 1808, a scientist named John Dalton suggested that the atoms that make up matter were physical objects that had specific weights. In 1829, Johann Doebereinger demonstrated that particular elements could be arranged in groups of three, according to their weights. In each group of three, the elements had similar properties and the weight of the middle atom in the group was close to the average of the other two. In 1864, a man named John A. Newlands grouped all of the known elements into the order of their atomic weights.