sentence: Spectroscopes are used often in astronomy and some branches of chemistry.
sentences_before: Spectrometers are used in spectroscopic analysis to identify materials.
sentences_after: Early spectroscopes were simply a prism with graduations marking wavelengths of light. Modern spectroscopes, such as monochromators, generally use a diffraction grating, a movable slit, and some kind of photodetector, all automated and controlled by a computer. The spectroscope was invented by Gustav Robert Georg Kirchhoff and Robert Wilhelm Bunsen.
concept_name: spectroscope
headings: Spectrometer Spectroscopes
categories: Physics Laboratory equipment