====== Spectrum of a Blackbody ====== {{:physicsdemos:waves_and_optics:photometry:spectrum_of_a_blackbody.jpeg?400|}} A large incandescent lamp approximates a blackbody radiator. Students use hand-held transmission gratings to view the visible part of the blackbody spectrum as the power to the lamp is varied. L1, A0 PIRA DCS 6B40.10