This is a demonstration of the continuous spectrum of white light and the emission spectra of mercury, nitrogen, neon, and hydrogen, imaged through a diffraction grating.

This demonstration was created at Utah State University by Professor Boyd F. Edwards, assisted by James Coburn (demonstration specialist), David Evans (videography), and Rebecca Whitney (closed captions), with support from Jan Sojka, Physics Department Head, and Robert Wagner, Executive Vice Provost and Dean of Academic and Instructional Services.