Spectroscopy is the study of the interactions of (related to electricity producing magnetic fields)radiation, or light, with matter in order to gain information about the atoms or (glues or joins together) present within the system. There are many different types of spectroscopic ways of doing things; however, most of the ways of doing things are based on the (mental concentration/picking up of a liquid) or emission of photons from the material being studied. Theapplications of spectroscopy span a variety of fields of study and can allow scientists to, amonghuge numbers of other things, decide/figure out the elemental (combination of different substances, objects, people, etc.) of a nearby dwarf star, the chemical identity of an unknownwhite powder sample, whether a transfected (tiny chemical assembly instruction inside of living things) has been expressed, or the types of individual (forces that glue or join things together)within a molecule. Spectroscopy is the study of how light interacts with matter. It allows scientistsin a broad organized row of fields to study the (work of art/artistic combining of elements) ofboth very large and very small systems. Each spectroscopic way of doing things is (like nothing else in the world); however, most of the widely used ways of doing things are based on one ofthree (important events or patterns of things): the (mental concentration/picking up of a liquid) oflight by matter, the emission of light by matter, or the scattering of light by matter. A photon canbehave as both a particle and a wave. For most spectroscopic ways of doing things, the wavenature of the photon is the most critical because the wavelength of light being gave off/given off, soaked up (like a towel), or scattered is where the information about the sample is contained. (mental concentration/picking up of a liquid) spectroscopy involves the (mental concentration/picking up of a liquid) of photons by matter and can give information about thetypes of atoms or (glues or joins together) in a molecule. Usually, a given material will soak up (like a towel) clearly stated/particular wavelengths of light and will reflect or transmit all the otherwavelengths. Emission spectroscopy involves the emission of photons from a sample onexcitation. Scattering deals with light that is inelastically scattered from a sample, meaning thatthe wavelength of light bouncing off the sample is not the same as the wavelength of light thatwas shined on the sample.