It is native to North America, Mexico and Central America, and it is NOT venomous. The Red-bellied black snake (Pseudechis porphyriacus) is considerably larger, and can reach 1.5 to 2.5m in length. It is native to Eastern Australia and is venomous.
Emission of Light. An overview of light emission. Light can be produced by matter which is in an excited state and as it will be shown excitation can come from a variety of sources. The atoms and molecules that make up matter typically emit light at characteristic energies. The light emission can be spontaneous or stimulated.
Chemiluminescence is the generation of electromagnetic radiation as light by the release of energy from a chemical reaction.While the light can, in principle, be emitted in the ultraviolet, visible or infrared region, those emitting visible light are the most common.hemiluminescence is the generation of electromagnetic radiation as light by the release of energy from a chemical reaction.