When the St. Louis, Arkansas and Texas line was built from Corsicana to Milepost 35 in 1887, the station, called Mertens for the wife of the engineer on the first train, was built near the Walling place.
Fluorescence is the emission of light or photon, similar to bioluminescence and phosphorescence. However, each of them differs beyond the atomic level. Bioluminescence is when an organism emits light through biochemical means. Bioluminescence is the outcome of the oxidation of luciferin and the enzyme luciferase.
Fluorescence. If a high energy photon is absorbed by an atom or molecule by exciting an electron and then quickly undergoes some interaction with the crystal lattice or some collisional process, the excited electron can be transferred to a lower quantum state.