Explore the universe in your classroom! When viewed through a spectroscope, spectrum tubes reveal the characteristic spectral lines of elements and enable astronomers to study stars, nebulae, galaxies, and even the universe.
Spectrum tubes allow students to examine the spectrum of gases and learn their characteristic colors. Wavelengths can be demonstrated with diffraction grating spectrometers. The tube design is such that the gases are concentrated in the center for better brilliance. Tubes are 25 cm L with termination caps at each end. Note: Requires Spectrum Tube Power Supply (item #755400, not included).