This economical spectroscope reveals the hidden nature of color and visible light. Lets you investigate bright line spectra to unveil the atomic origin of light and contast the differences between gas discharge and incandescent lights.Learn about diffraction gratings and how they separate white light into its component colors. Measure wavelengths of visible light from 4000 to 7000 Angstroms; ±50 Angstroms. Supplied with instructions that review the historical aspects of light, diffraction gratings, and provides suggestions for numerous experiments.